Can the addendum be e-signed?

Yes. Electronic signatures are legally binding in interstate commerce under the ESIGN Act (15 U.S.C. ch. 96). Ensure intent, consent, attribution, and retention are documented to meet legal validity tests.

Is New York different?

Yes. New York applies its ESRA framework rather than UETA; adhere to ESRA and confirm authentication methods to ensure enforceability in New York.

When is notarization required?

Not typically required for software addenda. Use notarization only if a specific state law or counterparty demands an acknowledged instrument for recordation or evidentiary purposes.

Who must sign the addendum?

An authorized representative with explicit signature authority for the party should sign. Verify authority in procurement records or corporate resolutions to avoid challenges.

What if a signer withdraws consent?

Follow the withdrawal and amendment provisions in the addendum; preserve copies of the withdrawal notice and any executed versions to document intent and timing.

How to handle version control?

Label each draft and executed version with a unique version number and execution date, and attach a redline summary showing changes to the master agreement for auditability.

Electronic Signature
Templates
Miscellaneous
Software Code Upgrades Addendum

Software Code Upgrades Addendum

This template is fully customizable. Edit the text, fill out the fields, and send it for signature. Give it a try!

SOFTWARE CODE UPGRADES ADDENDUM

Recitals

This Software Code Upgrades Addendum (the Addendum) is entered into as of between (Service Provider) and (Client).

WHEREAS, the parties entered into a Master Services Agreement dated (Master Agreement) governing the provision of software services; and

WHEREAS, the parties desire to document the terms under which the Service Provider will perform software code upgrades, enhancements, and related services as described herein.

Scope of Work

Detailed Description of Upgrades

Upgrade Type: Minor Major Emergency

Deliverables shall include source code changes, migration scripts, documentation of changes, and test reports. Acceptance shall be deemed upon completion of the acceptance tests described in the Scope of Work unless Client provides written rejection with specific defects within days.

Payment Terms

Total Upgrade Fee Payment Schedule / Milestones

Invoices are due within days of invoice date. Late payments shall accrue interest at or the maximum rate permitted by law, whichever is less.

Invoicing Address / Instructions

Term and Termination

This Addendum shall commence on and shall continue until unless earlier terminated in accordance with this section.

Either party may terminate this Addendum for material breach if the breaching party fails to cure the breach within days after written notice. Either party may terminate for convenience upon days' prior written notice.

Confidentiality and Intellectual Property

Each party shall treat the other party's Confidential Information as confidential and shall not disclose it to third parties except as necessary to perform this Addendum or as required by law. Confidential Information includes, without limitation, source code, technical specifications, trade secrets, business processes, and any information designated as confidential.

All intellectual property rights in any modifications, enhancements, or code delivered under this Addendum shall be: Assigned to Client Licensed to Client Retained by Service Provider

If Licensed: License Scope

Warranties and Liability

Service Provider warrants that the upgrades will materially conform to the Scope of Work for a period of days from acceptance. The exclusive remedy for breach of this warranty shall be re-performance of defective services or, at Service Provider's option, a refund of fees paid for the nonconforming portion. Except as expressly provided herein, neither party makes any additional warranties.

Governing Law; Entire Agreement

This Addendum shall be governed by and construed in accordance with the laws of without regard to conflict of law principles.

This Addendum, together with the Master Agreement, constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior oral or written communications, representations, or agreements related to the upgrades. Any amendment to this Addendum must be in writing and signed by authorized representatives of both parties.

Notices

Service Provider Contact for Notices Client Contact for Notices

Service Provider:

Printed Name:

By:

Date:

Client:

Printed Name:

By:

Date:

What the Software Code Upgrades Addendum Is

A Software Code Upgrades Addendum is a contract attachment that modifies an existing software agreement to define scope, schedule, and responsibilities for code upgrades. It describes upgrade types (major, minor, security), acceptance criteria, rollback procedures, testing and staging responsibilities, support windows, payment or pricing adjustments, and intellectual property allocation for modified code. The addendum clarifies warranty and liability limits tied to upgrades, integrates with maintenance and SLA provisions, and provides an auditable record of change that reduces later disputes between vendor and customer.

Why a Clear Upgrade Addendum Matters

A precise addendum reduces ambiguity about what an upgrade includes, who performs testing, how acceptance is defined, and which costs apply. It limits scope creep, protects IP rights, aligns release schedules with business operations, and creates a traceable record for compliance and audit purposes.

Typical Parties and Roles That Use This Addendum

The addendum is used by software vendors, enterprise buyers, and internal stakeholders such as product managers and legal teams when upgrades are anticipated.

Software vendor teams responsible for development, release management, and warranty obligations.
Enterprise IT and application owners who schedule deployments and validate acceptance testing.
Legal, procurement, and compliance personnel who approve contract changes and manage risk.

Use the addendum to document responsibilities, approvals, and timelines so all parties have a single source of truth for upgrade work.

Core Sections to Include in a Professional Addendum

A robust addendum organizes upgrade work into clear sections that cover scope, delivery, acceptance, timelines, obligations, and post-upgrade support to reduce disputes and operational impact.

Scope

Define specific components, modules, or codebases to be upgraded, including excluded items and version targets; avoid open-ended language that permits unbounded changes.

Schedule

Set firm milestone dates for development, staging, testing, and production deployment with time windows for emergency or hotfix releases and time-zone considerations.

Acceptance

Specify acceptance tests, performance metrics, and sign-off procedures, including required test data, defect thresholds, and the process for remediation and retesting.

Rollback

Establish rollback criteria and procedures, identify responsible parties for rollback execution, and define timelines for restoration to a previous stable release.

Costs

Break out fixed upgrade fees, hourly rates, change-order pricing, and any optional support packages; state invoicing timing and payment terms.

IP & Warranties

Address ownership of changes, licensing for derivative work, warranty period for upgrades, indemnities for third-party code, and limitations of liability.

Step-by-Step: Completing the Addendum

Use this sequential checklist to prepare, review, and finalize the addendum so sign-off and deployment proceed smoothly.

01

Draft: Populate title, parties, effective date, and detailed scope.
02

Review: Legal, product, and engineering confirm technical and compliance points.
03

Authorize: Obtain signatures from authorized signers and confirm signature authority.
04

Archive: Store the fully executed addendum with master contract records.

Configuring an Online Approval Workflow

Set up a document workflow that routes drafts for review, enforces signatures, and preserves an audit trail for compliance.

Field	Configuration
Routing Order	Sequential or parallel signer routing; define roles.
Authentication	Email link, SMS code, or advanced verification as required.
Notifications	Automatic reminders and escalation on unsigned documents.
Recordkeeping	Attach completed PDF and audit report to contract repository.

How Electronic Execution Typically Works

Electronic execution follows predictable steps from upload through completion; ensure each step is assigned and auditable.

Upload: Sender uploads the addendum and adds fields.
Assign: Sender assigns signers and routing order.
Authenticate: Signer authenticates using chosen method.
Complete: Signed document and audit trail are stored.

Digital Signing and Platform Considerations

Choose a signing platform that supports the authentication level, audit trail, and file formats required by your compliance framework.

File Formats: PDF and DOCX supported
Integrations: CRM and document repositories
Authentication: Email, SMS, or advanced methods

Ensure the platform provides tamper-evident signed PDFs, a complete audit trail, and the ability to export signed records for legal or regulatory review.

Security and Compliance Essentials to Verify

Encryption: TLS 1.2/1.3 in transit, AES-256 at rest

Audit Trail: Timestamp, IP, and action log retained

BAA Availability: HIPAA requires signed BAA for PHI

Regulatory Support: 21 CFR Part 11 capabilities available

Certifications: SOC 2 Type II and ISO 27001

Accessibility: WCAG 2.0 Level AA support

Common Preparation Mistakes to Avoid

Leaving scope language vague, which leads to disagreements over whether specific changes are included in the upgrade.
Failing to define acceptance tests or metrics, causing uncertainty after deployment and contested sign-off.
Not specifying rollback procedures or responsibilities, which increases downtime risk during faulty upgrades.
Omitting signature authority verification, leading to executed addenda that lack enforceable approval.

Key Risks When the Addendum Is Incorrect

Scope Creep: Unplanned work and cost overruns

IP Disputes: Unclear ownership of modified code

Service Interruptions: Insufficient rollback increases downtime

Warranty Voids: Unauthorized changes can void warranties

Compliance Failure: Data handling gaps breach regulations

Payment Disputes: Ambiguous fees cause invoicing conflicts

eSignature Pricing and Feature Snapshot

Compare starting price and key capabilities for common eSignature vendors to evaluate cost and compliance fit for addendum execution.

	signNow	DocuSign	Adobe Sign	PandaDoc	HelloSign
Starting Price	$8/user/mo	$15/user/mo	$14/user/mo	$19/user/mo	$15/user/mo
Free Trial	7-day free trial, no card	Varies by plan	Varies by plan	Varies by plan	Varies by plan
Bulk Send	Yes (Business Premium)	Varies by plan	Varies by plan	Varies by plan	Varies by plan
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes (BAA required)	Varies by plan	Varies by plan	Varies by plan	Varies by plan
Envelope Cap	No cap	100 envelopes/user/year	Varies by plan	Varies by plan	Varies by plan

Real-World Examples of Electronic Addendum Execution

These examples illustrate how organizations use electronic signatures to finalize upgrade addenda while preserving security and auditability.

Optica Ventures (COO)

Optica streamlined document flow for customer approvals and internal sign-off on changes.

The interface reduced handoffs and confusion during upgrade cycles.
Brian Fitzgibbons reports the interface is simple and easy to use for teams and customers, helping the company finalize contractual changes without adding administrative delay.

Tech Data (CEO)

Tech Data centralized signature workflows for commercial and technical change orders.

Centralized routing improved visibility across departments.
Bob Dutkowsky describes using the platform to improve internal and external customer service while increasing speed to revenue.

Frequently Asked Questions and Practical Answers

Answers to common questions about enforceability, signing authority, and electronic submission for code upgrade addenda.

Need help? Contact support

Can the addendum be e-signed?
Yes. Electronic signatures are legally binding in interstate commerce under the ESIGN Act (15 U.S.C. ch. 96). Ensure intent, consent, attribution, and retention are documented to meet legal validity tests.
Is New York different?
Yes. New York applies its ESRA framework rather than UETA; adhere to ESRA and confirm authentication methods to ensure enforceability in New York.
When is notarization required?
Not typically required for software addenda. Use notarization only if a specific state law or counterparty demands an acknowledged instrument for recordation or evidentiary purposes.
Who must sign the addendum?
An authorized representative with explicit signature authority for the party should sign. Verify authority in procurement records or corporate resolutions to avoid challenges.
What if a signer withdraws consent?
Follow the withdrawal and amendment provisions in the addendum; preserve copies of the withdrawal notice and any executed versions to document intent and timing.
How to handle version control?
Label each draft and executed version with a unique version number and execution date, and attach a redline summary showing changes to the master agreement for auditability.

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