Exhibit 4.1

TYLER TECHNOLOGIES, INC.
2010 STOCK OPTION PLAN

     1.  ESTABLISHMENT OF PLAN . Tyler Technologies, Inc. establishes the “Tyler Technologies, Inc. 2010 Stock Option Plan,” effective as of May 13, 2010 (the “Effective Date”). Options granted under the Plan shall be subject to the terms and of the Plan as set forth herein, as it may be amended from time to time.

     2.  PURPOSE . The purposes of the Plan are to (i) offer selected Employees, Directors and Consultants an equity ownership interest and opportunity to participate in the growth and financial success of the Company, (ii) provide the Company an opportunity to attract and retain the best available personnel for positions of substantial responsibility, (iii) create long-term value and to provide incentives to such Employees, Directors and Consultants by means of market-driven and performance-related stock-based Options to achieve long-term performance goals, and (iv) to promote the growth and success of the Company’s business by aligning the financial interests of selected Employees, Directors and Consultants with that of the other shareholders of the Company. Toward these objectives, the Plan provides for the grant of Options.

     3.  DEFINITIONS . As used herein, unless the context requires otherwise, the following terms shall have the meanings indicated below:

     (a) “ Affiliate ” means (i) any corporation, partnership or other entity which owns, directly or indirectly, a majority of the voting equity securities of the Company, (ii) any corporation, partnership or other entity of which a majority of the voting equity securities or equity interest is owned, directly or indirectly, by the Company, and (iii) with respect to an Option that is intended to be an Incentive Stock Option, (A) any “parent corporation” of the Company, as defined in Section 424(e) of the Code or (B) any “subsidiary corporation” of the Company as defined in Section 424(f) of the Code; provided, that in each case, an Affiliate must be a “recipient corporation” as described in Treasury Regulations issued under Section 409A of the Code.

     (b) “ Board ” means the Board of Directors of the Company.

     (c) “ Change in Control ” of the Company means the occurrence of any of the following events: (i) any “person” (as such term is used in Sections 13(d) and 14(d) of the Exchange Act) is or becomes the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing 50 percent or more of the combined voting power of the Company’s then outstanding securities; (ii) as a result of, or in connection with, any tender offer or exchange offer, merger, or other business combination (a “ Transaction ”), the persons who were directors of the Company immediately before the Transaction shall cease to constitute a majority of the Board of Directors of the Company or any successor to the Company; (iii) the Company is merged or consolidated with another corporation and as a result of the merger or consolidation less than 50 percent of the outstanding voting securities of the surviving or resulting corporation shall then be owned in the aggregate by the former stockholders of the Company; (iv) a tender offer or exchange offer is

made and consummated for the ownership of securities of the Company representing 50 percent or more of the combined voting power of the Company’s then outstanding voting securities; or (v) the Company transfers substantially all of its assets to another corporation which is not controlled by the Company.

     (d) “ Code ” means the Internal Revenue Code of 1986, as amended, and any successor statute. Reference in the Plan to any section of the Code shall be deemed to include any amendments or successor provisions to such section and any Treasury regulations promulgated under such section.

     (e) “ Committee ” means the committee, as constituted from time to time, of the Board that is appointed by the Board to administer the Plan; provided, however, that while the Common Stock is publicly traded, the Committee shall be a committee of the Board consisting solely of two or more Outside Directors, in accordance with Section 162(m) of the Code, and/or solely of two or more Non-Employee Directors, in accordance with Rule 16b-3, as necessary in each case to satisfy such requirements with respect to Options granted under the Plan. Within the scope of such authority, the Committee may (i) delegate to a committee of one or more members of the Board who are not Outside Directors the authority to grant Options to eligible persons who are either (A) not then Covered Employees and are not expected to be Covered Employees at the time of recognition of income resulting from such Options or (B) not persons with respect to whom the Company wishes to comply with Section 162(m) of the Code and/or (ii) delegate to a committee of one or more members of the Board who are not Non-Employee Directors the authority to grant Options to eligible persons who are not then subject to Section 16 of the Exchange Act.

     (f) “ Common Stock ” means the Common Stock, $0.01 par value per share, of the Company or the common stock that the Company may in the future be authorized to issue (as long as the common stock varies from that currently authorized, if at all, only in amount of par value).

     (g) “ Company ” means Tyler Technologies, Inc., a Delaware corporation.

     (h) “ Consultant ” means any person (other than an Employee or a Director, solely with respect to rendering services in such person’s capacity as a Director) who is engaged by the Company or any Affiliate to render consulting or advisory services to the Company or such Affiliate and who is a “consultant or advisor” within the meaning of Rule 701 promulgated under the Securities Act or Form S-8 promulgated under the Securities Act.

     (i) “ Continuous Service ” means that the provision of services to the Company or an Affiliate in any capacity of Employee, Director or Consultant is not interrupted or terminated. Except as otherwise provided in a particular Option Agreement, service shall not be considered interrupted or terminated for this purpose in the case of (i) any approved leave of absence, (ii) transfers among the Company, any Affiliate, or any successor, in any capacity of Employee, Director or Consultant, or (iii) any change in status as long as the individual remains in the service of the Company or an Affiliate in any capacity of Employee, Director or Consultant. An approved leave of absence shall include sick leave, military leave, or any other authorized personal leave. For purposes of each Incentive Stock Option, if such leave exceeds ninety (90)

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days, and re-employment upon expiration of such leave is not guaranteed by statute or contract, then the Incentive Stock Option shall be treated as a Non-Qualified Stock Option on the day that is three (3) months and one (1) day following the expiration of such ninety (90)-day period.

     (j) “ Covered Employee ” means the Chief Executive Officer and the four other most highly compensated officers of the Company for whom total compensation is required to be reported to shareholders under Regulation S-K, as determined for purposes of Section 162(m) of the Code.

     (k) “ Director ” means a member of the Board.

     (l) “ Disability ” means the “disability” of a person as defined in a then effective long-term disability plan maintained by the Company that covers such person, or if such a plan does not exist at any relevant time, “Disability” means the permanent and total disability of a person within the meaning of Section 22(e)(3) of the Code. For purposes of determining the time during which an Incentive Stock Option may be exercised under the terms of an Option Agreement, “Disability” means the permanent and total disability of a person within the meaning of Section 22(e)(3) of the Code. Section 22(e)(3) of the Code provides that an individual is totally and permanently disabled if he is unable to engage in any substantial gainful activity by reason of any medically determinable physical or mental impairment which can be expected to result in death or which has lasted or can be expected to last for a continuous period of not less than twelve (12) months.

     (m) “ Employee ” means any person, including an Officer or Director, who is employed within the meaning of Section 3401 of the Code by the Company or an Affiliate. The provision of compensation by the Company or an Affiliate to a Director solely with respect to such individual rendering services in the capacity of a Director, however, shall not be sufficient to constitute “employment” by the Company or that Affiliate.

     (n) “ Exchange Act ” means the Securities Exchange Act of 1934, as amended, and any successor statute. Reference in the Plan to any section of the Exchange Act shall be deemed to include any amendments or successor provisions to such section and any rules and regulations relating to such section.

     (o) “ Fair Market Value ” means, as of any date, the value of the Common Stock determined as follows:

     (i) If the Common Stock is listed on any established stock exchange or traded on the Nasdaq National Market or the Nasdaq SmallCap Market, the Fair Market Value of a share of Common Stock shall be the closing sales price for such a share of Common Stock (or the closing bid, if no sales were reported) as quoted on such exchange or market (or the exchange or market with the greatest volume of trading in the Common Stock) on the day of determination (or if no such price or bid is reported on that day, on last market trading day prior to the day of determination), as reported in The Wall Street Journal or such other source as the Committee deems reliable.

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     (ii) In the absence of any such established markets for the Common Stock, the Fair Market Value shall be determined in good faith by the Committee in a manner consistent with Section 409A of the Code.

     (p) “ Incentive Stock Option ” means an Option granted to an Employee under the Plan that meets the requirements of Section 422 of the Code.

     (q) “ Non-Employee Director ” means a Director of the Company who either (i) is not an Employee or Officer, does not receive compensation (directly or indirectly) from the Company or an Affiliate in any capacity other than as a Director (except for an amount as to which disclosure would not be required under Item 404(a) of Regulation S-K), does not possess an interest in any other transaction as to which disclosure would be required under Item 404(a) of Regulation S-K and is not engaged in a business relationship as to which disclosure would be required under Item 404(b) of Regulation S-K or (ii) is otherwise considered a “non-employee director” for purposes of Rule 16b-3.

     (r) “ Non-Qualified Stock Option ” means an Option granted under the Plan that is not intended to be an Incentive Stock Option.

     (s) “ Officer ” means a person who is an “officer” of the Company or any Affiliate within the meaning of Section 16 of the Exchange Act (whether or not the Company is subject to the requirements of the Exchange Act).

     (t) “ Option ” means a stock option granted pursuant to the Plan to purchase a specified number of shares of Common Stock, whether granted as an Incentive Stock Option or as a Non-Qualified Stock Option.

     (u) “ Option Agreement ” means the written agreement evidencing the grant of an Option executed by the Company and the Optionee, including any amendments thereto.

     (v) “ Optionee ” means an individual to whom an Option has been granted under the Plan.

     (w) “ Outside Director ” means a Director of the Company who either (i) is not a current employee of the Company or an “affiliated corporation” (within the meaning of the Treasury regulations promulgated under Section 162(m) of the Code), is not a former employee of the Company or an “affiliated corporation” receiving compensation for prior services (other than benefits under a tax qualified pension plan), has not been an officer of the Company or an “affiliated corporation” at any time and is not currently receiving (within the meaning of the Treasury regulations promulgated under Section 162(m) of the Code) direct or indirect remuneration from the Company or an “affiliated corporation” for services in any capacity other than as a Director, or (ii) is otherwise considered an “outside director” for purposes of Section 162(m) of the Code.

     (x) “ Plan ” means this Tyler Technologies, Inc. 2010 Stock Option Plan, as set forth herein and as it may be amended from time to time.

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     (y) “ Qualifying Shares ” means shares of Common Stock which either (i) have been owned by the Optionee for more than six (6) months and have been “paid for” within the meaning of Rule 144 promulgated under the Securities Act, or (ii) were obtained by the Optionee in the public market.

     (z) “ Regulation S-K ” means Regulation S-K promulgated under the Securities Act, as it may be amended from time to time, and successor to Regulation S-K. Reference in the Plan to any item of Regulation S-K shall be deemed to include any amendments or successor provisions to such item.

     (aa) “ Rule 16b-3 ” means Rule 16b-3 promulgated under the Exchange Act, as it may be amended from time to time, and any successor to Rule 16b-3.

     (bb) “ Section ” means a section of the Plan unless otherwise stated or the context otherwise requires.

     (cc) “ Securities Act ” means the Securities Act of 1933, as amended, and any successor statute. Reference in the Plan to any section of the Securities Act shall be deemed to include any amendments or successor provisions to such section and any rules and regulations relating to such section.

     (dd) “ Ten Percent Shareholder ” means a person who owns (or is deemed to own pursuant to Section 424(d) of the Code) at the time an Option is granted stock possessing more than ten percent (10%) of the total combined voting power of all classes of stock of the Company or of any of its Affiliates.

     4.  STOCK OPTION GRANTS AVAILABLE UNDER THE PLAN . Options granted under this Plan may be (a) Incentive Stock Options and (b) Non-Qualified Stock Options.

     5.  SHARES SUBJECT TO PLAN . Subject to adjustment pursuant to Section 10(a) hereof, the total amount of Common Stock with respect to which Options may be granted under the Plan shall not exceed 5,000,000 shares of Common Stock. Any shares of Common Stock covered by an Option (or a portion of an Option) that is forfeited or canceled, or that expires shall be deemed not to have been issued for purposes of determining the maximum aggregate number of shares of Common Stock which may be issued under the Plan and shall again be available for Options under the Plan. At all times during the term of the Plan, the Company shall reserve and keep available such number of shares of Common Stock as will be required to satisfy the requirements of outstanding Options under the Plan. Nothing in this Section 5 shall impair the right of the Company to reduce the number of outstanding shares of Common Stock pursuant to repurchases, redemptions, or otherwise; provided, however, that no reduction in the number of outstanding shares of Common Stock shall (i) impair the validity of any outstanding Option, whether or not that Option is fully exercisable, or (ii) impair the status of any shares of Common Stock previously issued pursuant to an Option as duly authorized, validly issued, fully paid, and nonassessable. The shares to be delivered under the Plan shall be made available from (i) authorized but unissued shares of Common Stock or (ii) Common Stock

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held in the treasury of the Company, in each case as the Committee may determine from time to time in its sole discretion.

     6.  ELIGIBILITY . Options other than Incentive Stock Options may be granted to Employees, Officers, Directors, and Consultants. Incentive Stock Options may be granted only to Employees (including Officers and Directors who are also Employees), as limited by clause (iii) of Section 3(a). The Committee in its sole discretion shall select the recipients of Options. An Optionee may be granted more than one Option under the Plan, and Options may be granted at any time or times during the term of the Plan. The grant of an Option to an Employee, Officer, Director or Consultant shall not be deemed either to entitle that individual to, or to disqualify that individual from, participation in any other grant of Options under the Plan.

     7.  LIMITATION ON INDIVIDUAL OPTIONS . Subject to the provisions of Section 10(a), the maximum number of shares of Common Stock that may be subject to Options granted to any one person under the Plan shall not exceed 1,000,000 shares of Common Stock. The limitation set forth in the preceding sentence shall be applied in a manner which will permit compensation generated under the Plan to constitute “performance-based” compensation for purposes of Section 162(m) of the Code, including counting against such maximum number of shares, to the extent required under Section 162(m) of the Code and applicable interpretive authority thereunder, any shares of Common Stock subject to Options that are canceled or repriced.

     8.  TERMS AND CONDITIONS OF OPTIONS . The Committee shall determine (a) whether each Option shall be granted as an Incentive Stock Option or a Non-Qualified Stock Option and (b) the provisions, terms and conditions of each Option including, but not limited to, the vesting schedule, the number of shares of Common Stock subject to the Option, the exercise price of the Option, the period during which the Option may be exercised, repurchase provisions, forfeiture provisions, methods of payment, and all other terms and conditions of the Option, subject to the following:

     (a)  Form of Option Grant . Each Option granted under the Plan shall be evidenced by a written Option Agreement in such form (which need not be the same for each Optionee) as the Committee, or if applicable the Chief Executive Officer, from time to time approves, but which is not inconsistent with the Plan, including any provisions that may be necessary to assure that any Option that is intended to be an Incentive Stock Option will comply with Section 422 of the Code.

     (b)  Date of Grant . The date of grant of an Option will be the date on which the Committee makes the determination to grant such Option unless otherwise specified by the Committee. The Option Agreement evidencing the Option will be delivered to the Optionee with a copy of the Plan and other relevant Option documents, within a reasonable time after the date of grant.

     (c)  Exercise Price . The exercise price of an Option shall be not less than 100% of the Fair Market Value of the shares of Common Stock on the date of grant of the Option. The exercise price of any Incentive Stock Option granted to a Ten Percent Shareholder shall not be

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less than 110% of the Fair Market Value of the shares of Common Stock on the date of grant of the Option.

     (d)  Exercise Period . Options shall be exercisable within the time or times or upon the event or events determined by the Committee and set forth in the Option Agreement; provided, however, that no Option shall be exercisable later than the expiration of ten (10) years from the date of grant of the Option, and provided further, that no Incentive Stock Option granted to a Ten Percent Shareholder shall be exercisable after the expiration of five (5) years from the date of grant of the Option.

     (e)  Limitations on Incentive Stock Options . The aggregate Fair Market Value (determined as of the date of grant of an Option) of Common Stock which any Employee is first eligible to purchase during any calendar year by exercise of Incentive Stock Options granted under the Plan and by exercise of incentive stock options (within the meaning of Section 422 of the Code) granted under any other incentive stock option plan of the Company or an Affiliate shall not exceed $100,000. If the Fair Market Value of stock with respect to which all incentive stock options described in the preceding sentence held by any one Optionee are exercisable for the first time by such Optionee during any calendar year exceeds $100,000, the Options (that are intended to be Incentive Stock Options on the date of grant thereof) for the first $100,000 worth of shares of Common Stock to become exercisable in such year shall be deemed to constitute incentive stock options within the meaning of Section 422 of the Code and the Options (that are intended to be Incentive Stock Options on the date of grant thereof) for the shares of Common Stock in the amount in excess of $100,000 that become exercisable in that calendar year shall be treated as Non-Qualified Stock Options. If the Code or the Treasury regulations promulgated thereunder are amended after the effective date of the Plan to provide for a different limit than the one described in this 8(e), such different limit shall be incorporated herein and shall apply to any Options granted after the effective date of such amendment.

     (f)  Transferability of Options . Options granted under the Plan, and any interest therein, shall not be transferable or assignable by the Optionee, and may not be made subject to execution, attachment or similar process, otherwise than by will or by the laws of descent and distribution, and shall be exercisable during the lifetime of the Optionee only by the Optionee; provided, that the Optionee may, however, designate persons who or which may exercise his Options following his death.

     (g)  Acquisitions and Other Transactions . The Committee may, from time to time, assume outstanding options granted by another entity, whether in connection with an acquisition of such other entity or otherwise, by either (i) granting an Option under the Plan in replacement of or in substitution for the option assumed by the Company, or (ii) treating the assumed option as if it had been granted under the Plan if the terms of such assumed option could be applied to an Option granted under the Plan. Such assumption shall be permissible if the holder of the assumed option would have been eligible to be granted an Option hereunder if the other entity had applied the rules of this Plan to such grant. The Committee also may grant Options under the Plan in settlement of or substitution for, outstanding options or obligations to grant future options in connection with the Company or an Affiliate acquiring another entity, an interest in another entity or an additional interest in an Affiliate whether by merger, stock purchase, asset purchase or other form of transaction. Notwithstanding the foregoing provisions of this

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Section 8, in the case of an Option issued or assumed pursuant to this Section 8(g), the exercise price for the Option shall be determined in accordance with the principles of Section 424(a) of the Code and the Treasury regulations promulgated thereunder.

     9.  EXERCISE OF OPTIONS .

     (a)  Notice . Options may be exercised only by delivery to the Company of a written exercise notice approved by the Committee (which need not be the same for each Optionee), stating the number of shares of Common Stock being purchased, the method of payment, and such other matters as may be deemed appropriate by the Company in connection with the issuance of shares of Common Stock upon exercise of the Option, together with payment in full of the exercise price for the number of shares of Common Stock being purchased. Such exercise notice may be part of an Optionee’s Option Agreement.

     (b)  Payment . Payment for the shares of Common Stock to be purchased upon exercise of an Option may be made in cash (by check) or, if elected by the Optionee and in one or more of the following methods stated in the Option Agreement (at the date of grant with respect to any Option granted as an Incentive Stock Option) and where permitted by law: (i) if a public market for the Common Stock exists, through a “same day sale” arrangement between the Optionee and a broker-dealer that is a member of the National Association of Securities Dealers, Inc. (an “ NASD Dealer ”) whereby the Optionee elects to exercise the Option and to sell a portion of the shares of Common Stock so purchased to pay for the exercise price and whereby the NASD Dealer commits upon receipt of such shares of Common Stock to forward the exercise price directly to the Company; (ii) if a public market for the Common Stock exists, through a “margin” commitment from the Optionee and an NASD Dealer whereby the Optionee elects to exercise the Option and to pledge the shares of Common Stock so purchased to the NASD Dealer in a margin account as security for a loan from the NASD Dealer in the amount of the exercise price, and whereby the NASD Dealer commits upon receipt of such shares of Common Stock to forward the exercise price directly to the Company; or (iii) by surrender for cancellation of Qualifying Shares at the Fair Market Value per share at the time of exercise (provided that such surrender does not result in an accounting charge for the Company). No shares of Common Stock may be issued until full payment of the purchase price therefor has been made.

     (c)  Withholding Taxes . The Committee may establish such rules and procedures as it considers desirable in order to satisfy any obligation of the Company to withhold the statutory prescribed minimum amount of federal or state income taxes or other taxes with respect to the exercise of any Option granted under the Plan. Prior to issuance of the shares of Common Stock upon exercise of an Option, the Optionee shall pay or make adequate provision acceptable to the Committee for the satisfaction of the statutory minimum prescribed amount of any federal or state income or other tax withholding obligations of the Company, if applicable. Upon exercise of an Option, the Company shall withhold or collect from the Optionee an amount sufficient to satisfy such tax withholding obligations.

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     (d)  Exercise of Option Following Termination of Continuous Service .

     (i) An Option may not be exercised after the expiration date of such Option set forth in the Option Agreement and may be exercised following the termination of an Optionee’s Continuous Service only to the extent provided in the Option Agreement.

     (ii) Where the Option Agreement permits an Optionee to exercise an Option following the termination of the Optionee’s Continuous Service for a specified period, the Option shall terminate to the extent not exercised on the last day of the specified period or the last day of the original term of the Option, whichever occurs first.

     (iii) Any Option designated as an Incentive Stock Option, to the extent not exercised within the time permitted by law for the exercise of Incentive Stock Options following the termination of an Optionee’s Continuous Service, shall convert automatically to a Non-Qualified Stock Option and thereafter shall be exercisable as such to the extent exercisable by its terms for the period specified in the Option Agreement.

     (iv) The Committee shall have discretion to determine whether the Continuous Service of an Optionee has terminated and the effective date on which such Continuous Service terminates and whether the Optionee’s Continuous Service terminated as a result of the Disability of the Optionee.

     (e)  Limitations on Exercise .

     (i) The Committee may specify a reasonable minimum number of shares of Common Stock or a percentage of the shares subject to an Option that may be purchased on any exercise of an Option; provided, that such minimum number will not prevent Optionee from exercising the full number of shares of Common Stock as to which the Option is then exercisable.

     (ii) The obligation of the Company to issue any shares of Common Stock pursuant to the exercise of any Option shall be subject to the condition that such exercise and the issuance and delivery of such shares pursuant thereto comply with the Securities Act, all applicable state securities laws and the requirements of any stock exchange or national market system upon which the shares of Common Stock may then be listed or quoted, as in effect on the date of exercise. The Company shall be under no obligation to register the shares of Common Stock with the Securities and Exchange Commission or to effect compliance with the registration, qualification or listing requirements of any state securities laws or stock exchange or national market system, and the Company shall have no liability for any inability or failure to do so.

     (iii) As a condition to the exercise of an Option, the Company may require the person exercising such Option to represent and warrant at the time of any such exercise that the shares of Common Stock are being purchased only for investment and without any present intention to sell or distribute such shares of Common Stock if, in the opinion of counsel for the Company, such a representation is required by any securities or other applicable laws.

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     (f)  Modification, Extension And Renewal of Options . The Committee shall have the power to modify, cancel, extend or renew outstanding Options and to authorize the grant of new Options in substitution therefor (regardless of whether any such action would be treated as a repricing for financial accounting or other purposes), provided that (except as permitted by Section 10 of this Plan) any such action may not, without the written consent of any Optionee, (i) impair any rights under any Option previously granted to such Optionee or (ii) cause the Otpion to become subject to Section 409A of the Code. Any outstanding Incentive Stock Option that is modified, extended, renewed or otherwise altered will be treated in accordance with Section 424(h) of the Code.

     (g)  Privileges of Stock Ownership . No Optionee will have any of the rights of a shareholder with respect to any shares of Common Stock subject to an Option until such Option is properly exercised and the purchased shares are issued and delivered to the Optionee, as evidenced by an appropriate entry on the books of the Company or of a duly authorized transfer agent of the Company. No adjustment shall be made for dividends or distributions or other rights for which the record date is prior to such date of issuance and delivery, except as provided in the Plan.

     10.  ADJUSTMENT UPON CHANGES IN CAPITALIZATION AND CORPORATE EVENTS .

     (a)  Capital Adjustments . The number of shares of Common Stock (i) covered by each outstanding Option granted under the Plan, the exercise or purchase price of such outstanding Option, and any other terms of the Option that the Committee determines requires adjustment and (ii) available for issuance under Sections 5 and 7 shall be adjusted to reflect, as deemed appropriate by the Committee, any increase or decrease in the number of shares of Common Stock resulting from a stock dividend, stock split, reverse stock split, combination, reclassification or similar change in the capital structure of the Company without receipt of consideration, subject to any required action by the Board or the shareholders of the Company and compliance with applicable securities laws; provided, however, that a fractional share will not be issued upon exercise of any Option, and either (i) any fraction of a share of Common Stock that would have resulted will be cashed out at Fair Market Value or (ii) the number of shares of Common Stock issuable under the Option will be rounded down to the nearest whole number, as determined by the Committee. Except as the Committee determines, no issuance by the Company of shares of capital stock of any class, or securities convertible into shares of capital stock of any class, shall affect, and no adjustment by reason hereof shall be made with respect to, the number or price of shares of Common Stock subject to an Option.

     (b)  Dissolution or Liquidation . The Committee shall notify the Optionee at least twenty (20) days prior to any proposed dissolution or liquidation of the Company. Unless provided otherwise in an individual Option Agreement or in a then-effective written employment agreement between the Optionee and the Company or an Affiliate, to the extent that an Option has not been previously exercised, any such Option shall expire immediately prior to consummation of such dissolution or liquidation.

     (c)  Change in Control . Unless specifically provided otherwise with respect to Change in Control events in an individual Option Agreement or in a then-effective written

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employment agreement between the Optionee and the Company or an Affiliate, if, during the effectiveness of the Plan, a Change in Control occurs, then the Options outstanding immediately before the Change of Control will be assumed by the surviving corporation or the acquiring corporation or will be converted into options or rights of at least equal value; except that if the surviving corporation or the acquiring corporation refuses to so assume or to so convert the outstanding Options, then the Options shall become fully vested and exercisable, and the Company shall notify each Participant, not later than 20 days prior to the effective date of such Change of Control (except that in the case of a Change of Control described in clause (iii) above in this paragraph, notice shall be given as soon as practicable after that Change of Control), that all his Options have become fully vested and exercisable, whether or not such Options would otherwise then be exercisable under the terms of his Option Agreement. Any such arrangement relating to Incentive Options shall comply with the requirements of Section 422 of the Code and the regulations thereunder. To the extent that the Participants exercise the Options before or on the effective date of the Change of Control, the Company shall issue all Common Stock purchased by exercise of those Options (subject to Optionee’s satisfaction of the requirements of Section 9(c)), and those shares of Common Stock shall be treated as issued and outstanding for purposes of the Change of Control. Upon a Change of Control, where the outstanding Options are not assumed by the surviving corporation or the acquiring corporation, the Plan shall terminate, and any unexercised Options outstanding under the Plan at that date shall terminate.

     11.  STOCKHOLDER APPROVAL . The Company shall obtain the approval of the Plan by the Company’s stockholders to the extent required to satisfy Section 162(m) of the Code or to satisfy or comply with any applicable laws or the rules of any stock exchange or national market system on which the Common Stock may be listed or quoted. No Option that is issued as a result of any increase in the number of shares of Common Stock authorized to be issued under the Plan may be exercised prior to the time such increase has been approved by the stockholders of the Company, and all such Options granted pursuant to such increase will similarly terminate if such shareholder approval is not obtained.

     12.  ADMINISTRATION . This Plan shall be administered by the Committee. The Committee shall interpret the Plan and any Options granted pursuant to the Plan and shall prescribe such rules and regulations in connection with the operation of the Plan as it determines to be advisable for the administration of the Plan. The Committee may rescind and amend its rules and regulations from time to time. The interpretation by the Committee of any of the provisions of this Plan or any Option granted under this Plan shall be final and binding upon the Company and all persons having an interest in any Option or any shares of Common Stock acquired pursuant to an Option.

     13.  EFFECT OF PLAN . Neither the adoption of the Plan nor any action of the Board or the Committee shall be deemed to give any Employee, Director or Consultant any right to be granted an Option or any other rights except as may be evidenced by the Option Agreement, or any amendment thereto, duly authorized by the Committee and executed on behalf of the Company, and then only to the extent and on the terms and conditions expressly set forth therein. The existence of the Plan and the Options granted hereunder shall not affect in any way the right of the Board, the Committee or the stockholders of the Company to make or authorize any adjustment, recapitalization, reorganization or other change in the Company’s capital structure or its business, any merger or consolidation or other transaction involving the

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Company, any issue of bonds, debentures, or shares of preferred stock ahead of or affecting the Common Stock or the rights thereof, the dissolution or liquidation of the Company or any sale or transfer of all or any part of the Company’s assets or business, or any other corporate act or proceeding by or for the Company. Nothing contained in the Plan or in any Option Agreement or in other related documents shall confer upon any Employee, Director or Consultant any right with respect to such person’s Continuous Service or interfere or affect in any way with the right of the Company or an Affiliate to terminate such person’s Continuous Service at any time, with or without cause.

     14.  NO EFFECT ON RETIREMENT AND OTHER BENEFIT PLANS . Except as specifically provided in a retirement or other benefit plan of the Company or an Affiliate, Options shall not be deemed compensation for purposes of computing benefits or contributions under any retirement plan of the Company or an Affiliate, and shall not affect any benefits under any other benefit plan of any kind or any benefit plan subsequently instituted under which the availability or amount of benefits is related to level of compensation. The Plan is not a “Retirement Plan” or “Welfare Plan” under the Employee Retirement Income Security Act of 1974, as amended.

     15.  AMENDMENT OR TERMINATION OF PLAN . The Board in its discretion may, at any time or from time to time after the date of adoption of the Plan, terminate or amend the Plan in any respect, including amendment of any form of Option Agreement, exercise agreement or instrument to be executed pursuant to the Plan; provided, however, to the extent necessary to comply with the Code, including Sections 162(m) and 422 of the Code, other applicable laws, or the applicable requirements of any stock exchange or national market system, the Company shall obtain stockholder approval of any Plan amendment in such manner and to such a degree as required. No Option may be granted after termination of the Plan. Any amendment or termination of the Plan shall not affect Options previously granted, and such Options shall remain in full force and effect as if the Plan had not been amended or terminated, unless mutually agreed otherwise in a writing (including an Option Agreement) signed by the Optionee and the Company.

     16.  TERM OF PLAN . Unless sooner terminated by action of the Board, the Plan shall terminate on the earlier of (i) the tenth (10 ^th ) anniversary of the Effective Date or (ii) the date on which no shares of Common Stock subject to the Plan remain available to be granted as Options under the Plan according to its provisions.

     17.  SEVERABILITY AND REFORMATION . The Company intends all provisions of the Plan to be enforced to the fullest extent permitted by law. Accordingly, should a court of competent jurisdiction determine that the scope of any provision of the Plan is too broad to be enforced as written, the court should reform the provision to such narrower scope as it determines to be enforceable. If, however, any provision of the Plan is held to be wholly illegal, invalid, or unenforceable under present or future law, such provision shall be fully severable and severed, and the Plan shall be construed and enforced as if such illegal, invalid, or unenforceable provision were never a part hereof, and the remaining provisions of the Plan shall remain in full force and effect and shall not be affected by the illegal, invalid, or unenforceable provision or by its severance.

Tyler Technologies, Inc.
2010 Stock Option Plan		Page 12

     18.  GOVERNING LAW . The Plan shall be construed and interpreted in accordance with the laws of the State of Texas.

     19.  INTERPRETIVE MATTERS . Whenever required by the context, pronouns and any variation thereof shall be deemed to refer to the masculine, feminine, or neuter, and the singular shall include the plural, and vice versa. The term “include” or “including” does not denote or imply any limitation. The captions and headings used in the Plan are inserted for convenience and shall not be deemed a part of the Plan for construction or interpretation.

Tyler Technologies, Inc.
2010 Stock Option Plan		Page 13

Exhibit 4.2

AMENDMENT NO. 1
TO THE
TYLER TECHNOLOGIES, INC. 2010 STOCK OPTION PLAN

     THIS AMENDMENT to the Tyler Technologies, Inc. 2010 Stock Option Plan (the “ Plan ”) is hereby adopted by Tyler Technologies, Inc. (the “ Company ”), effective as of May 13, 2010.

     WHEREAS, the Company established the Plan, which was approved by the Company’s stockholders effective as of May 13, 2010;

     WHEREAS, the Company reserved the right to amend the Plan pursuant to Section 15 thereof; and

     WHEREAS, the Company desires to amend the Plan to prohibit the repricing of stock options granted under the Plan without the approval of the Company’s stockholders;

     NOW THEREFORE, the Plan is hereby amended by restatement of Section 9(f) thereof in its entirety to read as follows:

     “(f) Modification, Extension And Renewal of Options . The Committee shall have the power to modify, cancel, extend or renew outstanding Options and to authorize the grant of new Options in substitution therefor; provided, however, that (except as permitted by Section 10 of this Plan) any such action may not reprice any outstanding Option, directly or indirectly, without the approval of the stockholders of the Company or, without the written consent of any affected Optionee, (i) impair any rights under any Option previously granted to such Optionee or (ii) cause the Option or the Plan to become subject to Section 409A of the Code and, provided further, that without the approval of the stockholders of the Company outstanding Options may not be cancelled in exchange for cash, Options or other stock awards with an exercise price that is less than the exercise price of the original Options. Any outstanding Incentive Stock Option that is modified, extended, renewed or otherwise altered will be treated in accordance with Section 424(h) of the Code.”

     IN WITNESS WHEREOF, and as evidence of the adoption of the foregoing Amendment, the Company has caused this Amendment to be executed by a duly authorized officer as of the date first set forth above.