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2nd November 2026Alba 9 Is Nearly HereAlba 9.0 RC3 is the last release candidate before the biggest release Alba has had in years: host pooling for parallel integration tests, scenarios addressed by route name, JSON path and problem details assertions, endpoint coverage and authorization audits, time travel with a fake TimeProvider, server-sent events, and a rebuilt docs site. All of it is Jaedyn's work. Plus the breaking changes to read before you upgrade from Alba 8.
30th October 2026Critter Stack in Review: October 12th to 30thThree weeks, 72 tagged releases, and 57 pull requests from 18 people outside JasperFx. The big themes were not losing messages, with a durable inbox and outbox hardening pass that closed a dozen community-reported ways a message could go missing; performance, from SQL Server index seeks to a thread pool thread the run command was quietly eating; shutting down cleanly; an async daemon that heals itself; and multi-tenancy at a scale we'd never tested before. Plus Marten's hard stream delete, Aspire parity in Wolverine, NServiceBus XML interop, and the upgrade notes you should read first.
12th October 2026Critter Stack Week in Review: October 5th to 12thBobcat went from 0.31 to 0.50 and dropped its Gherkin lane for a projected-only model, WolverineFx.Bobcat shipped, and the whole Event Modeling to specs to scaffolding workflow got a tutorial ahead of tomorrow's live stream. Nineteen pull requests from fourteen people outside JasperFx, headlined by a NATS JetStream hardening pass and a 66 minute leader election brought down to seconds. Plus SQL Server ordered envelope ids, Marten's FetchForWriting consistency fixes, and the LINQ projection surface working under Native AOT.
5th October 2026Our Busiest Week Ever: The Critter Stack from September 28th to October 5thForty releases, 267 merged pull requests, and 38 of those from eleven people outside JasperFx. Native AOT went from aspirational to measured in CI across Marten, Wolverine, Polecat, and Fisher. Weasel picked up a Firebird provider and a pile of MySQL, Oracle, and SQLite fixes from the Quartz.NET maintainer. Wolverine's global partitioning got hardened by a user running it hard in a real cluster. And Polecat and Fisher kept pace with Marten the whole way.
3rd June 2026Wolverine Hit Five Million DownloadsWolverine, the low-ceremony .NET application framework for asynchronous messaging, HTTP endpoints, and CQRS, just passed five million NuGet downloads — with a million in the last six weeks alone.
20th July 2025OSS Lessons LearnedJeremy joins David Giard on Technology and Friends to talk about lessons learned from building and maintaining a public OSS tool.
2nd April 2025A Quick Note about Our Plans for Marten and WolverineAs competing .NET tools move to paid licenses, Marten and Wolverine stay MIT licensed under JasperFx's open core model, with services, support plans, and CritterWatch funding the work.28th February 2025JasperFx YouTube ChannelJeremy and Jeffry have launched a YouTube channel dedicated to the Critter Stack and the other JasperFx open source projects.6th January 2025JasperFx Software in 2025A look back at JasperFx Software's 2024, with clients in eight countries, the recurring themes in that work, and what the company is focused on in 2025.
28th June 2024Inaugural Video - Talking with JasperFX founder Jeremy MillerJeff Gonzalez talks with JasperFx founder Jeremy Miller about his history in .NET open source, the Critter Stack community, and what JasperFx Software is for.
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2nd November 2026Alba 9 Is Nearly HereAlba 9.0 RC3 is the last release candidate before the biggest release Alba has had in years: host pooling for parallel integration tests, scenarios addressed by route name, JSON path and problem details assertions, endpoint coverage and authorization audits, time travel with a fake TimeProvider, server-sent events, and a rebuilt docs site. All of it is Jaedyn's work. Plus the breaking changes to read before you upgrade from Alba 8.30th October 2026Critter Stack in Review: October 12th to 30thThree weeks, 72 tagged releases, and 57 pull requests from 18 people outside JasperFx. The big themes were not losing messages, with a durable inbox and outbox hardening pass that closed a dozen community-reported ways a message could go missing; performance, from SQL Server index seeks to a thread pool thread the run command was quietly eating; shutting down cleanly; an async daemon that heals itself; and multi-tenancy at a scale we'd never tested before. Plus Marten's hard stream delete, Aspire parity in Wolverine, NServiceBus XML interop, and the upgrade notes you should read first.12th October 2026Critter Stack Week in Review: October 5th to 12thBobcat went from 0.31 to 0.50 and dropped its Gherkin lane for a projected-only model, WolverineFx.Bobcat shipped, and the whole Event Modeling to specs to scaffolding workflow got a tutorial ahead of tomorrow's live stream. Nineteen pull requests from fourteen people outside JasperFx, headlined by a NATS JetStream hardening pass and a 66 minute leader election brought down to seconds. Plus SQL Server ordered envelope ids, Marten's FetchForWriting consistency fixes, and the LINQ projection surface working under Native AOT.5th October 2026Our Busiest Week Ever: The Critter Stack from September 28th to October 5thForty releases, 267 merged pull requests, and 38 of those from eleven people outside JasperFx. Native AOT went from aspirational to measured in CI across Marten, Wolverine, Polecat, and Fisher. Weasel picked up a Firebird provider and a pile of MySQL, Oracle, and SQLite fixes from the Quartz.NET maintainer. Wolverine's global partitioning got hardened by a user running it hard in a real cluster. And Polecat and Fisher kept pace with Marten the whole way.3rd June 2026Wolverine Hit Five Million DownloadsWolverine, the low-ceremony .NET application framework for asynchronous messaging, HTTP endpoints, and CQRS, just passed five million NuGet downloads — with a million in the last six weeks alone.20th July 2025OSS Lessons LearnedJeremy joins David Giard on Technology and Friends to talk about lessons learned from building and maintaining a public OSS tool.2nd April 2025A Quick Note about Our Plans for Marten and WolverineAs competing .NET tools move to paid licenses, Marten and Wolverine stay MIT licensed under JasperFx's open core model, with services, support plans, and CritterWatch funding the work.28th February 2025JasperFx YouTube ChannelJeremy and Jeffry have launched a YouTube channel dedicated to the Critter Stack and the other JasperFx open source projects.6th January 2025JasperFx Software in 2025A look back at JasperFx Software's 2024, with clients in eight countries, the recurring themes in that work, and what the company is focused on in 2025.28th June 2024Inaugural Video - Talking with JasperFX founder Jeremy MillerJeff Gonzalez talks with JasperFx founder Jeremy Miller about his history in .NET open source, the Critter Stack community, and what JasperFx Software is for.