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How to Upgrade SQL Server 2022 to SQL Server 2025: Step-by-Step Guide

SQL Server 2022 to SQL Server 2025 upgrade checklist

Upgrading SQL Server 2022 to SQL Server 2025 can be a direct upgrade, but the fact that the version path is supported does not mean every SQL Server 2022 installation is automatically ready for an in-place upgrade.

A production upgrade should be treated as a controlled DBA change.

Before Setup runs, you need to confirm operating-system and hardware compatibility, check installed SQL Server features, eliminate pending restart conditions, verify backups through an actual restore test, inventory server-level dependencies, establish a performance baseline, and decide exactly how you will recover if the maintenance window does not go as planned.

For some systems, an in-place upgrade is reasonable. For others, building SQL Server 2025 alongside the existing SQL Server 2022 environment is safer.

If you are still deciding whether moving from 2022 makes business sense at all, start with our SQL Server 2025 vs SQL Server 2022 comparison before beginning the technical migration plan.

Table of Contents

Can You Upgrade SQL Server 2022 Directly to SQL Server 2025?

Yes. SQL Server 2022 is a supported source version for a direct upgrade to SQL Server 2025.

That answers only the version-path question.

A successful production upgrade still depends on several other conditions:

  • the operating system must support SQL Server 2025
  • the server must meet SQL Server 2025 hardware and software requirements
  • installed SQL Server components must be supported
  • the current instance must be healthy enough to upgrade
  • application vendors and database drivers must support the target version
  • sufficient storage must be available
  • SQL Server Setup must be able to complete without restart or service-related blockers
  • you need a tested recovery plan

A supported upgrade path should therefore be viewed as permission to begin assessment, not proof that the environment is ready for production change.

First Decide: In-Place Upgrade or Side-by-Side Migration?

Before downloading installation media or booking downtime, decide which migration model better fits the system.

What is an in-place SQL Server upgrade?

An in-place upgrade converts the existing SQL Server 2022 installation to SQL Server 2025 on the same server environment.

Conceptually:

SQL Server 2022 instance -> SQL Server Setup -> SQL Server 2025 instance

The major advantage is continuity.

The same server and instance structure remain in place, so fewer infrastructure components may need to be redirected.

But that convenience comes with an important tradeoff: you are modifying the existing production installation.

If something unexpected occurs, rollback is not equivalent to simply clicking an “undo” button.

What is a side-by-side migration?

With a side-by-side migration, SQL Server 2025 is installed on a separate server, VM or instance.

Databases and dependencies are then migrated from the SQL Server 2022 environment.

Conceptually:

SQL Server 2022 production -> SQL Server 2025 parallel environment -> test -> cutover

This requires more migration work, but it provides much stronger separation between the current platform and the replacement.

When an in-place upgrade can make sense

An in-place upgrade is worth considering when:

  • the existing operating system is supported
  • hardware does not need replacement
  • the SQL Server configuration is relatively straightforward
  • installed features have been validated
  • the application has been tested with SQL Server 2025
  • the maintenance window is adequate
  • the recovery plan is proven

When side-by-side migration may be safer

A separate SQL Server 2025 environment deserves serious consideration when:

  • you are replacing the server or operating system anyway
  • the database supports a critical application
  • the SQL instance has accumulated years of configuration changes
  • you need extensive application testing
  • several external integrations depend on the server
  • infrastructure architecture is changing
  • downtime must be minimized
  • you want to keep the old environment available during validation

For complex systems, the additional work of a side-by-side migration can buy valuable rollback flexibility.

Step 1 - Inventory the Existing SQL Server 2022 Environment

Do not begin with Setup.

Begin by documenting what you actually have.

A SQL Server instance contains much more than user databases.

At minimum, inventory:

  • SQL Server edition
  • exact SQL Server build
  • installed features
  • databases and database sizes
  • database compatibility levels
  • SQL logins
  • Windows logins and groups
  • server roles
  • SQL Agent jobs
  • linked servers
  • credentials
  • proxies
  • certificates and keys
  • Database Mail configuration
  • endpoints
  • backup jobs
  • maintenance jobs
  • monitoring tools
  • third-party backup software
  • replication configuration if present
  • SSIS dependencies
  • SSRS dependencies
  • SSAS dependencies
  • external applications
  • ODBC/OLE DB/database drivers
  • connection strings or aliases
  • firewall requirements

This inventory becomes both the migration checklist and the post-upgrade validation checklist.

If you do not record an important dependency before the upgrade, discovering it after users report a failure is much more expensive.

Step 2 - Confirm SQL Server 2025 OS and Hardware Compatibility

The database engine may have a supported version path while the underlying operating system creates a blocker.

That distinction is especially important for servers that have been upgraded in place repeatedly over several SQL Server generations.

Check the operating system

Confirm that the exact Windows Server release and configuration used by the SQL Server host supports SQL Server 2025.

Do not assume:

SQL Server 2022 runs here, therefore SQL Server 2025 will too.

Those are different compatibility questions.

If the existing operating system is no longer appropriate for the target SQL Server version, a side-by-side migration to a newer server is usually more sensible than forcing several infrastructure changes into one in-place database upgrade.

Check CPU, memory and storage

Verify that the server satisfies SQL Server 2025 requirements, but distinguish installation minimums from sensible production sizing.

A system can technically satisfy minimum installation requirements while remaining completely inadequate for its real production workload.

Review:

  • processor architecture
  • CPU capacity
  • installed RAM
  • usable database memory
  • free system volume space
  • data volume capacity
  • transaction log storage
  • tempdb storage
  • backup capacity
  • expected database growth

Also consider whether moving to SQL Server 2025 changes the edition-capacity assumptions behind the server design.

SQL Server 2025 Standard, for example, provides more compute and buffer-pool headroom than earlier Standard releases. If hardware sizing and edition selection are changing together, revisit the decision rather than automatically buying the same edition you used for SQL Server 2022.

Step 3 - Check the Server for Upgrade Blockers

Several seemingly minor operating-system or SQL Server conditions can turn a scheduled upgrade into an aborted maintenance window.

Check these before production night.

Clear pending restart conditions

Windows servicing, driver installation, SQL Server updates and other system changes can leave the machine waiting for a restart.

Do not enter the SQL Server upgrade window with unresolved restart conditions.

Reboot earlier if required, then confirm the server and SQL Server services return cleanly.

Check SQL Server services

Verify that the SQL Server services are operating normally before you attempt the upgrade.

Investigate unexplained startup errors, service-account issues or recurring event-log problems first.

An unhealthy SQL Server instance is a poor candidate for an immediate version upgrade.

Check installation and servicing health

Review recent SQL Server servicing history.

If patches or previous installation changes failed, resolve those problems before layering a major-version upgrade on top of them.

Verify available disk space

SQL Server Setup requires working space in addition to the database volumes themselves.

Do not begin an upgrade on a system whose operating-system disk is almost full.

Step 4 - Assess Feature and Application Compatibility

A technically supported SQL Server instance can still host an application that is not ready for SQL Server 2025.

This is where application testing becomes as important as database testing.

Check application vendor support

If SQL Server backs third-party business software, verify that the software vendor supports SQL Server 2025.

Examples include:

  • ERP platforms
  • accounting software
  • CRM systems
  • manufacturing applications
  • healthcare systems
  • document-management applications
  • industry-specific applications

The database engine supporting an upgrade does not override the support policy of the software running on top of it.

Check client drivers

Inventory how applications connect to SQL Server.

Older SQL drivers may continue to work in some environments, but an upgrade project is a good time to confirm supported drivers and eliminate obsolete connectivity components.

Test important application functions

Do not limit testing to:

The application opened successfully.

Test real workflows.

For example:

  • login
  • record creation
  • updates
  • searches
  • reporting
  • imports
  • exports
  • scheduled processing
  • integrations
  • API calls
  • batch jobs
  • overnight tasks

An application can connect successfully while a critical background process fails hours later.

Step 5 - Establish a SQL Server 2022 Baseline

Before changing the database engine, capture what “normal” looks like.

Without a baseline, it becomes difficult to answer a common post-upgrade question:

Is SQL Server 2025 actually slower, or did the workload already behave this way?

Capture representative information such as:

  • CPU consumption
  • memory pressure
  • disk latency
  • transaction throughput
  • key query durations
  • wait patterns
  • application response times
  • blocking patterns
  • backup duration
  • index maintenance duration
  • nightly or weekly processing duration

Do this during representative business activity, not only during an idle period.

After the upgrade, repeat the same measurements.

The objective is not to prove that SQL Server 2025 is faster. It is to identify meaningful changes, including regressions.

Step 6 - Back Up Everything You Need

A major-version upgrade should never rely on assumptions about recovery.

Create appropriate current backups of the databases before the change.

But do not stop at:

Backup completed successfully.

Test the restore

Restore critical databases to a separate environment before the production upgrade.

This validates that:

  • the backup can be read
  • the database can actually be restored
  • the recovery procedure is understood
  • the team knows approximately how long recovery takes
  • the backup location is accessible when needed

A green backup job is reassuring.

A tested restore is evidence.

Protect more than user databases

Your recovery planning should also account for the server-level objects and configuration identified during inventory.

This may include:

  • logins
  • SQL Agent jobs
  • linked servers
  • encryption keys
  • certificates
  • credentials
  • server configuration
  • integration settings

A restored application database without the login or encryption material it depends on may still be unusable.

Step 7 - Define the Rollback Plan Before the Maintenance Window

Rollback planning should happen while everyone is calm, not after Setup reports a problem at 2:00 a.m.

Define clear rollback triggers.

Examples might include:

  • SQL Server Setup failure
  • database recovery failure
  • application validation failure
  • unacceptable performance regression
  • broken third-party integration
  • unrecoverable SQL Agent or service dependency
  • maintenance window exceeded

Then define what rollback actually means for your chosen migration approach.

In-place rollback requires serious planning

A major in-place SQL Server upgrade is not something you should treat like a reversible application preference.

Your recovery strategy may involve rebuilding or restoring the previous environment and restoring databases as appropriate to that plan.

This is one reason critical systems may benefit from a side-by-side architecture instead.

Side-by-side rollback can be cleaner

When the original SQL Server 2022 environment remains intact, the organization may be able to redirect applications back to it if cutover validation fails.

Even then, data synchronization matters.

If users have already written new production data to SQL Server 2025, simply pointing the application back at SQL Server 2022 can create data-loss or consistency problems.

Define the point at which rollback is still safe.

Step 8 - Prepare the SQL Server 2025 Installation Media and License

Do not wait until the maintenance window to discover that the installation media, edition or licensing plan is unclear.

Confirm:

  • target SQL Server 2025 edition
  • installation media
  • product-key requirements
  • licensing model
  • core quantity where applicable
  • server access model where applicable
  • administrative credentials

Edition selection should already have been completed before Setup.

If you are uncertain whether the workload belongs on Standard or Enterprise, use the SQL Server 2025 Standard vs Enterprise guide before purchasing.

Do not use the upgrade window to make a licensing architecture decision.

Step 9 - Schedule the Maintenance Window

A good maintenance window includes more time than Setup itself requires.

Plan time for:

pre-change checks -> backups -> upgrade -> database validation -> application validation -> performance checks -> go/no-go decision

The maintenance plan should identify:

  • change owner
  • DBA performing the upgrade
  • application owner
  • infrastructure contact
  • business approver
  • start time
  • validation deadline
  • rollback decision deadline
  • expected user availability time

The last item matters.

If the business expects service back at 06:00, finishing SQL Server Setup at 05:55 does not mean the project finished on schedule.

Validation requires time.

Step 10 - Perform the SQL Server 2022 to 2025 Upgrade

Once readiness checks are complete and the maintenance window begins, perform the final pre-change verification.

Confirm that:

  • users are disconnected where required
  • scheduled jobs are controlled
  • backups completed
  • restore capability has already been tested
  • monitoring alerts will not create unnecessary incident noise
  • no unexpected restart is pending
  • enough disk space remains
  • support contacts are available
  • rollback criteria are understood

Then run SQL Server Setup using the upgrade workflow appropriate to the existing SQL Server installation.

Read Setup checks rather than clicking through them

Setup rules exist for a reason.

Investigate warnings and blockers instead of treating the wizard as a next-next-finish process.

Pay particular attention to:

  • unsupported components
  • service problems
  • restart requirements
  • feature compatibility
  • edition compatibility
  • configuration warnings

A warning that appears harmless in a lab may deserve a different response on a critical production system.

Step 11 - Confirm SQL Server Starts Correctly

After Setup completes, do not immediately release the system to users.

First verify the SQL Server platform itself.

Check:

  • SQL Server Database Engine service
  • SQL Server Agent
  • required supporting services
  • Windows Event Viewer
  • SQL Server error log
  • database states
  • database recovery
  • storage availability
  • expected network connectivity

Every production database should be accounted for.

Investigate unexpected states before continuing.

Step 12 - Run Database Health Checks

Next, verify database health.

Your organization’s normal DBA procedures should determine the exact checks, but the post-upgrade process should include database integrity validation appropriate to the environment.

DBCC CHECKDB or the organization’s established integrity-check workflow is commonly part of that process.

Do not treat a successful SQL Server service start as proof that every database is healthy.

Step 13 - Validate Logins, Jobs and External Dependencies

This is where the inventory created before the upgrade becomes valuable.

Walk through the dependencies systematically.

Validate security and access

Test the accounts applications actually use.

Do not validate only your DBA login.

Confirm:

  • application authentication
  • SQL logins where used
  • Windows authentication
  • service accounts
  • permissions
  • database users

Validate SQL Agent jobs

Review important scheduled jobs rather than waiting for the next scheduled run.

Particular attention may be required for:

  • backups
  • ETL
  • imports
  • exports
  • reporting
  • maintenance
  • data synchronization
  • third-party processes

Validate linked systems

Check:

  • linked servers
  • APIs
  • file shares
  • reporting tools
  • middleware
  • monitoring
  • external applications

Database availability is only one component of application availability.

Step 14 - Do Not Rush the Database Compatibility Level Change

The SQL Server engine version and a database’s compatibility level are related but separate concepts.

That separation can be useful during upgrades.

Moving to SQL Server 2025 does not mean every application behavior change has to be introduced at the same instant as the engine upgrade.

A deliberate compatibility-level strategy can help isolate problems and give administrators more control over testing.

Why staged compatibility testing helps

Suppose the SQL Server 2025 engine upgrade succeeds and the application operates normally.

If you immediately introduce additional query-processing behavior changes and performance shifts at the same moment, troubleshooting becomes more complicated.

A staged approach can help answer:

  1. Is the application stable on the new engine?
  2. What changes when compatibility behavior is updated?
  3. Which queries improve?
  4. Which queries regress?

Treat compatibility-level changes as part of performance validation, not as a ceremonial final step.

Step 15 - Compare SQL Server 2025 Against Your Baseline

Now repeat the measurements taken before the upgrade.

Compare:

  • important query runtimes
  • CPU behavior
  • memory pressure
  • I/O latency
  • blocking
  • throughput
  • application response
  • batch-processing duration
  • backup duration
  • maintenance duration

Expect normal variation.

What you are looking for are meaningful changes.

If an important application query now takes significantly longer, investigate the cause before assuming users should simply accept it because the platform is newer.

Step 16 - Revalidate Backups After the Upgrade

The first successful production backup after the upgrade is an important milestone.

Confirm that:

  • backup jobs run
  • backup destinations remain accessible
  • retention works
  • monitoring recognizes successful and failed jobs
  • restore procedures remain viable

A successful migration that leaves the organization without a functioning backup process is not a successful production change.

Printable SQL Server 2022 to 2025 Upgrade Checklist

Planning an upgrade from SQL Server 2022 to SQL Server 2025 requires careful preparation, testing, and post-upgrade validation. To help you manage each stage efficiently, we’ve created a printable SQL Server 2022 to 2025 Upgrade Checklist covering pre-upgrade preparation, maintenance window tasks, recovery planning, application testing, and post-upgrade verification. Download the PDF below and use it as a practical reference throughout your SQL Server upgrade.

Example Upgrade Plan for a Production SQL Server

onsider a company running an ERP database on SQL Server 2022 Standard.

The environment has:

  • one production SQL Server
  • several SQL Agent jobs
  • a reporting application
  • a linked server to another business system
  • third-party backup software
  • approximately 1 TB of databases

The company wants SQL Server 2025 primarily for its newer Standard Edition capabilities and longer-term platform strategy.

A poor migration plan would be:

“Back up the databases Friday night, run Setup and see what happens.”

A stronger plan would look like this:

Several weeks before migration: Build a SQL Server 2025 test environment and validate the ERP application, drivers, reporting and scheduled processes.

One week before migration: Complete dependency inventory, restore-test production backups and capture performance baselines.

Several days before migration: Resolve outstanding Windows updates and restart the production server so the change window does not begin with a pending reboot.

Maintenance window: Take final backups, control jobs, perform the upgrade, validate services and databases, test the ERP application and verify integrations.

After migration: Compare performance with the SQL Server 2022 baseline, monitor production behavior and change database compatibility settings only according to the agreed testing strategy.

The technical steps may still be straightforward.

The difference is that failure has been planned for instead of ignored.

Common SQL Server 2022 to 2025 Upgrade Mistakes

Assuming supported means ready

SQL Server 2022 being a supported source version does not verify the operating system, application, drivers or installed components.

Testing only the database

Backup completion and recovery readiness are different things.

Test the restore before the maintenance window.

Inventorying databases but not the instance

Logins, jobs, linked servers and external dependencies can be as important as the databases themselves.

Upgrading without a performance baseline

Without before-and-after measurements, post-upgrade performance discussions become guesswork.

Treating Setup completion as project completion

SQL Server Setup can succeed while an application, Agent job or integration remains broken.

Application validation is part of the upgrade.

Choosing the SQL Server edition during installation

Edition and licensing decisions should be resolved before maintenance begins.

Combining too many infrastructure changes without testing

Changing SQL Server version, Windows Server, hardware, storage, authentication and application versions at once can make troubleshooting far harder.

When major infrastructure modernization is required, side-by-side migration often provides a cleaner path.

FAQ

Can SQL Server 2022 be upgraded directly to SQL Server 2025?

Yes. SQL Server 2022 is a supported direct upgrade source for SQL Server 2025, subject to the other platform, edition, feature and environment requirements that apply to the installation.

Not when performing a supported in-place version upgrade. SQL Server Setup upgrades the existing installation. A side-by-side migration is different because SQL Server 2025 is installed separately.

An in-place upgrade can work well for a straightforward, supported and thoroughly tested environment. A side-by-side migration may be preferable for critical systems, hardware or OS replacements, complex dependencies, or environments where rollback flexibility is particularly important.

Yes. More importantly, critical backups should be restore-tested before the production change so the recovery procedure is proven.

Do not assume so. Application software, database drivers, integrations and vendor support should be validated against SQL Server 2025 before production migration.

Not necessarily. Engine migration and compatibility-level changes can be staged so application stability and query behavior can be evaluated more deliberately.

That depends on workload requirements rather than the fact that you are upgrading. Review compute, memory, availability, maintenance and virtualization requirements. Our SQL Server 2025 Standard vs Enterprise comparison covers this decision in detail.

What to Do Before Buying SQL Server 2025 for the Upgrade

Do not purchase based solely on the fact that the SQL Server 2022 to 2025 upgrade path exists.

First establish:

target edition -> deployment architecture -> licensing model -> required quantity

If SQL Server 2025 Standard meets the technical and licensing requirements, you can review the SQL Server 2025 Standard options from Wholsalekeys after completing the readiness assessment.

For Per Core Standard deployments, Wholsalekeys also provides SQL Server 2025 Standard 2-Core and SQL Server 2025 Standard 16-Core options.

If your technical assessment identifies Enterprise requirements, determine the required licensed core count before evaluating the SQL Server 2025 Enterprise 2-Core or SQL Server 2025 Enterprise 16-Core products.

The license should follow the architecture.

It should not determine the architecture.

Stay tuned to our blog for more insights and tips.

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