COOL Days 2026, Hamburg

27 - 29 April 2026

COOL Days is back! This year we are heading to Hamburg, Germany for another event packed full of tech, hands-on workshops, fun and opportunities to meet the wider community.

Who is COOL Days for?

  • Collabora Online Partners and Integrators.
  • The COOL Community and LibreOffice Contributors.
  • People interested in learning about Collabora Online, how to integrate and the benefits for end users.

What can you expect?

  • The latest news and features in our Collabora Products, presented by the developers behind them.
  • Industry insights from Open Source experts.
  • Hands-on workshops to build and improve your integration with Collabora Online.
  • Support with adding features that will take your product to the next level.
  • Team-building, great food and lots of opportunity to meet with the wider community.
  • New for 2026 – Partner and Community awards evening.
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Schedule

Time Session Location
from 18:00 Pizza and drinks with new awards night and the return of the Collabora Quiz Betahaus Gänsemarkt
TimeSessionSpeakerLocation
09:00 – 09:30KeynoteMichael MeeksBetahaus Gänsemarkt
09:30 – 09:45What’s New in COOL 26.04Eloy CrespoBetahaus Gänsemarkt
09:45 – 10:00Schleswig-Holsteins Open Source Strategy and how Nextcloud and Collabora make us more efficientFelix Gebauer – Schleswig HolsteinBetahaus Gänsemarkt
10:00 – 10:15Deep Dive – Collabora OfficeThorsten BehrensBetahaus Gänsemarkt
10:15 – 10:30Rethinking Enterprise Collaboration: Sovereign, Proven, and Built to LastJason Gary – HCLBetahaus Gänsemarkt
10:30 – 11:00Tea Break Betahaus Gänsemarkt
11:00 – 11:10Bringing Collabora Office to Linux, macOS, WindowsSarper Akdemir, Jan (Kendy) Holešovský, Tor LillqvistBetahaus Gänsemarkt
11:10 – 11:15The Latest Updates to Documentation and SDKsHubert FiguièreBetahaus Gänsemarkt
11:15 – 11:20Strategies for Round-Trip InteroperabilityAron Budea & Caolán McNamaraBetahaus Gänsemarkt
11:20 – 11:25Recent Interoperability Wins on Presentations and SpreadsheetsKarthik GodhaBetahaus Gänsemarkt
11:25 – 11:30Under-the-Hood Browser Performance GainsMiklos VajnaBetahaus Gänsemarkt
11:30 – 11:35Editing Everywhere (Collabora Desktop and WASM Online/Offline Editing)Stephan BergmannBetahaus Gänsemarkt
11:35 – 11:40Bringing Modern Table Design to CalcBalázs VargaBetahaus Gänsemarkt
11:40 – 11:45Seamless XML Data Binding in CalcBayram ÇiçekBetahaus Gänsemarkt
11:45 – 11:50Personalised Perspectives: Independent Sheet Filtering for TeamsTomaž (Quikee) VajngerlBetahaus Gänsemarkt
11:50 – 11:55Pivot Table Calculated FieldsBalázs VargaBetahaus Gänsemarkt
11:55 – 12:00Navigating Complex Document HistoryMiklos VajnaBetahaus Gänsemarkt
12:00 – 12:05A Smarter Navigation SidebarNick WingateBetahaus Gänsemarkt
12:05 – 12:10Smart Zoom Defaults and Page-Width LogicSahil GautamBetahaus Gänsemarkt
12:10 – 12:15CRDT’s in 5 minutesMichael StahlBetahaus Gänsemarkt
12:15 – 12:20Rebuilding the IconView for Better AccessibilityParth RaiyaniBetahaus Gänsemarkt
12:20 – 12:25Migrating to TypeScript: Strategy and ProgressDennis FrancisBetahaus Gänsemarkt
12:25 – 12:30Testing for Graphical RegressionKurt NordbackBetahaus Gänsemarkt
12:30 – 13:30Lunch Betahaus Gänsemarkt
13:30 – 14:00Community PanelHosted by Pedro Pinto da Silva & Darshan UphadyayBetahaus Gänsemarkt
14:00 – 14:15Deep Dive – Collabora Office MobileSkyler GreyBetahaus Gänsemarkt
14:15 – 14:30Deep Dive – New Collabora Office IntegrationsHubert Figuière & Méven CarBetahaus Gänsemarkt
14:30 – 14:40Sovereign collaboration with Nextcloud and Collabora — but who’s in control?Patrick Zarnikow – NextcloudBetahaus Gänsemarkt
14:40 – 14:50 Marcel Meyer – STRATOBetahaus Gänsemarkt
14:50 – 15:00XWiki & Collabora Online: What’s New in the IntegrationLavinia Vitel – XWikiBetahaus Gänsemarkt
15:00 – 15:10Beyond the iframe: custom dialogs and WOPI in your Nextcloud + Collabora stackSiegmund Gorr – CIBBetahaus Gänsemarkt
15:30 – 16:00Tea Break Betahaus Gänsemarkt
16:00 – 16:15Running a political party on open source softwareJonathan Treffler – German Green PartyBetahaus Gänsemarkt
16:15 – 16:30 Thomas Hildmann – TU BerlinBetahaus Gänsemarkt
16:30 – 16:45 Victor Moster – openDeskBetahaus Gänsemarkt
16:45 – 17:00Migration to LibreOffice and Collabora Online Office in the Austrian Armed ForcesMichael Hillebrand – BMLVBetahaus Gänsemarkt
17:00 – 17:30Panel – Collabora Office in the WildHosted by Thorsten BehrensBetahaus Gänsemarkt
17:30 – 18:30Drinks and Networking Betahaus Gänsemarkt
19:00 – 00:00Dinner – Das Feuerschiff Das Feuerschiff

Partner Track

Time Session Speaker
11:00 – 11:30 Partner Keynote Eloy Crespo
11:30 – 12:30 Product Road Map Michael Meeks
13:30 – 14:40 Product Management and Feedback Michael Meeks
14:40 – 15:00 Releases, Support & Feedback Anna Nazaryan
15:00 – 15:20 Product Road Map Results Michael Meeks
16:00 – 16:15 Collabora Desktop Collaborative Editing Plans Thorsten Behrens & Stephan Bergmann
Time Session Speaker Location
09:00 – 09:30 Panel – Integrating Collabora Office – How it’s done. Hosted by Eloy Crespo Betahaus Gänsemarkt
09:30 – 09:45 A Prettier Collabora Online – the Latest UI/UX Improvements Pedro Pinto da Silva & Ivana Koron Betahaus Gänsemarkt
09:45 – 10:00 Writer Update Miklos Vajna Betahaus Gänsemarkt
10:00 – 10:15 Calc Update Asja Čandić Betahaus Gänsemarkt
10:15 – 10:30 Impress Update Pranam Lashkari Betahaus Gänsemarkt
10:30 – 11:00 Tea Break Betahaus Gänsemarkt
11:00 – 11:05 OpenCloud Michael Löffler Betahaus Gänsemarkt
11:10 – 11:15 Server Package Testing Before Release Joao Moreira de Azevedo Betahaus Gänsemarkt
11:15 – 11:20 Mind the Gap: Implementing Microsoft-Style Paragraph Spacing Justin Luth Betahaus Gänsemarkt
11:20 – 11:25 Numbering styles: balancing simplicity and efficiency when exporting to DOCX Jaume Pujantell Traserra Betahaus Gänsemarkt
11:25 – 11:30 Mastering the New Slide Extract Transform API Attila Szűcs Betahaus Gänsemarkt
11:30 – 11:35 Improving Presentation Flow with Overview Slides Mohit Marathe Betahaus Gänsemarkt
11:35 – 11:40 Conquering SmartArt Compatibility Armin Le Grand Betahaus Gänsemarkt
11:40 – 11:45 Search, Find, Fast: Enhancing UX with Comment Highlights and Shortcuts Samuel Mehrbrodt Betahaus Gänsemarkt
11:45 – 11:50 Caolán McNamara Betahaus Gänsemarkt
11:50 – 11:55 Mentions, Nesting, and the New Comment Experience Banobe Pascal Betahaus Gänsemarkt
11:55 – 12:00 Server-side Document Manipulation through Client-side JavaScript (QuickJS Scripting) Stephan Bergmann Betahaus Gänsemarkt
12:00 – 12:05 Bridging the Markdown-Visual Interface Divide Miklos Vajna Betahaus Gänsemarkt
12:05 – 12:10 Options at Your Fingertips: Streamlining the Global Settings Interface Darshan Hitesh Upadhyay Betahaus Gänsemarkt
12:10 – 12:15 The Evolution of JSDialogs Szymon Klos Betahaus Gänsemarkt
12:15 – 12:20 Geolocation and the Latest Updates to the COOL Controller Rashesh Padia Betahaus Gänsemarkt
12:20 – 12:30 Group Photo Betahaus Gänsemarkt
12:30 – 13:30 Lunch Betahaus Gänsemarkt
13:30 – 13:35 Accessibility wins in 25.04 Lily Logua Betahaus Gänsemarkt
13:30 – 13:35 Mapping the Future of Collabora Office Releases Andras Timar Betahaus Gänsemarkt
13:40 – 13:50 Zero Exposure – Why we rebuilt our stack on Apache 2.0 + Collabora David Walters – Kiteworks Betahaus Gänsemarkt
13:50 – 14:00 EGroupware 26 – AI Integration Birgit Becker – EGroupware Betahaus Gänsemarkt
14:00 – 14:10 Partner Talks Christian Distelberger – Fabasoft Betahaus Gänsemarkt
14:10 – 14:20 Partner Talks Guy-Christian Facia – Arawa Betahaus Gänsemarkt
14:20 – 14:30 Collabora Office sailing on to new destinations Leif-Joran Olsson – Friprogramvaruskyndikatet Betahaus Gänsemarkt
14:30 – 14:40 Freeing the Public Sector – One Document at a Time Ulrich Wohlfeil – ECMind Betahaus Gänsemarkt
14:40 – 14:50 Partner Talks Filipa Lourenco – Redpill Linpro Betahaus Gänsemarkt
14:50 – 15:00 From Draft to Decision: Sovereign Document Collaboration Michael Ekegren – cBrain Betahaus Gänsemarkt
15:00 – 15:10 Partner Talks Ilja Doert Betahaus Gänsemarkt
15:30 – 16:00 Tea Break Betahaus Gänsemarkt
16:00 – 16:15 Deep Dive – Using AI with Collabora Online Michael Meeks Betahaus Gänsemarkt
16:15 – 16:20 The Making of “The Open Road to Freedom” Michael Meeks Betahaus Gänsemarkt
16:20 – 16:25 Behind the Scenes of the Open Matters Podcast Richard Brock Betahaus Gänsemarkt
16:25 – 16:30 From Feature to Story: The Art of the Feature Friday Asja Čandić Betahaus Gänsemarkt
16:30 – 17:00 Panel – Hacking Before it was COOL Betahaus Gänsemarkt
17:00 – 19:30 Drinks and Networking Betahaus Gänsemarkt
20:00 – 23:30 Culinary Tour at Miniatur Wunderland Miniatur Wunderland

Integrations Track

TimeSessionSpeaker
09:45 – 10:00IntroductionPedro Silva, Caolán McNamara & Pranam Lashkari
10:00 – 10:30Integration Basics
Troubleshooting your integration – quick hacks for common issues
Meven Car
11:00 – 11:45Integration Customisation
Customisation and white labelling
Pedro Silva
11:45 – 12:30Integration API’s
How to use COOL API’s
Mike Kaganski, Attila Szűcs, Hubert Figuiere
13:30 – 14:30Deep Integration
Settings and API’s
Rashesh Padia, Miklos Vajna, Hubert Figuiere
14:30 – 15:30Deep Integration
Settings and Smart Picker
Szymon Klos
16:00 – 17:00Discussion & Q&A Pedro Silva

Internal Team Day

 

TimeSessionSpeaker
09:00CEO KeynoteMichael Meeks
10:30Tea Break 
11:00Workshops 
12:30Lunch Break 
13:30Workshops 
15:00Tea Break & End 

Call for Speakers

Share your expertise at COOL Days!

We invite you to share your expertise at COOL Days! If you’d like to contribute, please submit your details and a talk/workshop overview.

Possible topics include:

  • Your Collabora Online integration and experiences.
  • Features you’ve developed within the Collabora Office and LibreOffice codebase.
  • Success stories and how you use Collabora Office products within your company or organisation.
  • Your expertise on Open Source, digital sovereignty and document freedom.

What did attendees say?

"The partner workshops were interactive and well lead."

“I’ve been inspired through my conversations. Great experience and awesome people.”

"Our integration is now working beautifully. It scales to everything we need.”

“Hacking in person was an amazing experience, especially as a junior developer. It’s incredibly valuable to see first-hand how these brilliant minds approach problems, write code, and collaborate. You learn so much just by being around them!”

"It’s inspiring to connect with the people who use, contribute to, and support the project. It gave me a deeper appreciation of the impact we’re making together."

“Well organised tours and team building activities. All over very nice and memorable experience!”

We are looking forward to hosting you in Hamburg, Germany! Sign up today to secure your place.

Join us live in Hamburg, Germany!

Location: Mövenpick Hotel, Budapest Centrum

Catch Up Online

Re-watch the Livestream

Location: Novotel (Mövenpick Hotel), Budapest Centrum

Get Involved

Register for COOL Days today from only €100

  • Free tickets are available for partners, and contributors to the LibreOffice codebase. Please email marketing@collaboraoffice.com for more information.
  • Collabora’s mission to “Make Open Source Rock” has been an ongoing success thanks to our amazing diverse community and we would love to involve as many contributors as possible in our event. We have a select few travel sponsorship opportunities for those who need financial assistance to attend. If you require travel sponsorship you can request more information by emailing marketing@collaboraoffice.com.
  • Closing date for registrations is 16/05/25.

 

We look forward to welcoming you in Budapest!

Sign up closes in:

Days