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Latest blogs from our community

Jun 12, 2026

Four database surprises when upgrading from CMS 11 to CMS 13

We're in the middle of migrating a fairly large site from CMS 11 / .NET Framework to CMS 13 / .NET 10. The code migration is one thing, but the database is where the real surprises live. Everything worked fine against our dev and stage databases — and then we pointed the upgrade at a copy of the production database. Here are four things that bit...

Per Nergård (MVP)

Jun 11, 2026 - Syndicated blog

Designing ODP Real-Time Audiences for CMS Personalization and Experimentation

A practical look at when to use ODP Real-Time Audiences, how to build them, and how they fit into CMS personalization and Feature Experimentation.

Wojciech Seweryn

Jun 11, 2026

Unlock Experimentation with Content Variations in CMS 13

Part 1 argued that Content Variations is the CMS 13 feature that didn't get the keynote but should have. This is the follow-up: wiring those variations to Optimizely Feature Experimentation, measuring whether the traffic split actually holds, and serving the same experiment from two heads (classic MVC and headless Next.js) without the experiment...

Piotr

Jun 10, 2026 - Syndicated blog

umage.ai is now an Optimizely Silver Solution Partner

umage.ai is officially an Optimizely Silver Solution Partner. The badge formalises an alignment that was already there — agent-driven Optimizely work on our side, Optimizely's own investment in AI on theirs.

Allan Thraen

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Local Dev Meetups

We've been getting back together again since the beginning of this year and we're still meeting up.

We've got more locations coming up.
Check out our Local Dev Meetups page for more info.

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Opt-Up: Optimizely Training & Certification Program

Are you a developer currently certified in a CMS other than in Optimizely? We want you to be part of our ever-expanding developer community by supporting you with our Content Cloud training and certification program.

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You're Invited to Optimizely's Happy Hour Costume Contest

Join us on October 28th for the Happy Hour Halloween Costume Contest!

NA Happy Hour @ 3:30pm EST

EMEA Happy Hour Canceled

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.NET 5/6

Optimizely CMS Version 12 and Commerce Version 14 now released! Find out more about our latest version of CMS and Commerce - our move to .NET 5/6

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Release Notes

Release Notes

Optimizely - update 510

^{Posted on May 14, 2024}

Bug fixes for Optimizely Content Management System (CMS) and Optimizely Connect for Marketing Automation.

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Optimizely - update 509

^{Posted on May 07, 2024}

New release for Optimizely Customized Commerce. Bug fixes for Optimizely Content Management System (CMS).

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Optimizely - update 508

^{Posted on Apr 30, 2024}

Bug fixes for Optimizely Content Management System (CMS).

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Optimizely - update 507

^{Posted on Apr 23, 2024}

New release for Optimizely Forms.

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Optimizely - update 506

^{Posted on Apr 16, 2024}

New releases for Optimizely Commerce, Optimizely Content Delivery API, and Optimizely Graph.

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Optimizely - update 505

^{Posted on Apr 09, 2024}

New release for Optimizely Language Manager and bug fixes for Optimizely Forms.

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Want to find out more on what we've been doing for each release?

See release notes

Documentation

We've moved! Please visit https://docs.developers.optimizely.com/ for your latest documentation needs.

Optimizely Most Valuable Professionals

Optimizely Most Valuable Professionals (OMVP)

The OMVP program is our way of featuring and saying 'thank you' to our most active community members.

They lead the way in our community by providing copious amounts of help, inspiration and knowledge in a manner that is open, courteous, and professional.

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Latest Forum Posts

Thread	Room	Replies	Last Update
Can we run CMS 12 and CMS 13 sites in the same opti graph instance?	Content Management System 12	3	6/13/2026 10:23:56 AM By: Luc Gosso (MVP)
Reporting user activity in CMS 12	Developer to developer	9	6/13/2026 9:14:05 AM By: Piotr
Changed multisite behavior in CMS13?	Developer to developer	2	6/13/2026 8:35:53 AM By: Piotr
CMS13: Hover in preview pane shows the property code name and not translated label	Developer to developer	1	6/13/2026 8:04:24 AM By: Piotr
Understanding Serilog vs Application Insights Log Levels in Optimizely	Developer to developer	1	6/4/2026 12:37:45 PM By: Scott Reed