Hey, #ScalaCLI v1.11.0 is out! 🚀 The changes include: Scala 2.12 & 2.13 defaults changed to 2.12.21 and 2.13.18, respectively running tests with JVM <17 is now deprecated a number of fixes, internal changes and dependency bumps, Be sure to check the release notes here: github.com/VirtusLab/s...

Another highlight from Scala Days 2025 worth checking out 🎯 Watch “Scala, Productivity, and AI” by Krzysztof Romanowski — here → youtu.be/xgTPP9w3qU?... A must-watch for anyone looking to make Scala development smarter and more efficient. Share your favorite takeaway! 👇 (1/2)

On to another great Scala Days session 🎯 Check out “From Imports to Targets: Bazel on Autopilot with Scala Gazelle” by Wojciech Mazur — watch here → youtu.be/GbXO_9lY7Y0... If you care about build tooling and smoother project workflows, you don’t want to miss this. Drop your thoughts after! 👇 (1/2)

Here’s our next pick from Scala Days 2025 👇 “A Tour of Ox 1.0: Direct‑Style Concurrency and Resiliency” by Adam Warski — watch here → youtu.be/Gn0q5zsGarA... Give it a look — would love to hear what you think about mixing concurrency and Scala! 👇 (1/2)

Another stop in our Scala Days 2025 highlight series 🚀 Check out “Reach for the unlimited — power of Scala CLI” by Piotr Chabelski — watch here → youtu.be/TiivYKTdqZA... If you’re into streamlining builds and tooling in Scala — this is a must‑see. Drop your thoughts below! 👇 (1/2)

Continuing Scala Days 2025 highlight series 🎬 Check out “Bringing Scala to Server‑Side Wasm with WASI & Component Model” by Rikito Taniguchi — watch here → youtu.be/4nb6UsIs5WA... If you’re curious about Scala in emerging runtimes, this one’s a must-watch. Share your thoughts and takeaways! 👇 (1/2)

Up next in our Scala Days 2025 highlight series: “Unleashing the Full Potential of Metals” by Tomasz Godzik. 🎥 Check it out here → youtu.be/y18_oHTi53g... If you use Metals —or you’re curious what all the buzz is about — it’s a must-watch. Drop your thoughts after! 👇 (1/2)

Kicking off our Scala Days 2025 highlights with a fantastic talk from the conference! 🎥✨ “Say goodbye to implicits – contextual abstractions in Scala 3” by Magda Stożek 👉 youtu.be/59T9nf0PHvc... (1/2)

Metals 1.6.4 has just been release and as always it brings bug fixes as well as a number of general improvements. Take a look at the release notes for details: scalameta.org/metals/blog... #Scala

Today, instead of announcing a new feature, we would like to ask you about a possible new one. 🔎 In some other languages, it's possible to evaluate inline with the `>>>` symbol in a comment. This gives you a quick ability to evaluate some code. Should we add it to Metals?

Hey, #ScalaCLI v1.10.1 is out! 🚀 This is just a bug fix release addressing scala-cli#3949. See the full release notes here: github.com/VirtusLab/s...

Hey, #ScalaCLI v1.10.0 is out! 🚀 The changes include: Scala defaults changed to 3.7.4 and 2.13.17, support for the new Scala 3.8 REPL artifacts (to try with 3.8.nightly versions), support for adding extra directories to a docker image, a number of fixes, internal changes and dependency bumps. (1/2)

New Metals 1.6.3, codename "Osmium", has just been released! It comes with few interesting new features and we'll take the opportunity to go on a small tour.

We've just released sttp-ai 0.4.0 (formerly sttp-openai): you can now find clients for both OpenAI and Claude APIs. Same as sttp-client, the library works with any #Scala ecosystem: direct-style (synchronous), Future, cats-effect & ZIO. Enjoy! github.com/softwaremil...

This concludes our Ox feature tour - hope you've enjoyed it as much as we did! If you feel a feature is missing, or if you have a suggestion for an integration, just create an issue, we'll be happy to assist: github.com/softwaremil...

Ox feature tour, day 19: because it's direct style, integration with OpenTelemetry (metrics+logging+tracing) "just works"! To propagate tracing context inside concurrency scopes, you only need a single switch at your top-level `OxApp`!

🛠️ Next Scala Tooling Spree is coming up. 🗓️ It will take place on 09.10 17:30-19:30 CET. ✍️ If you'd like to participate please register by 7th here: forms.gle/yUurzS2KiM2...

Ox feature tour, day 18: `.pipe` and `.tap`, even extremely simple, are suprisingly useful! And there's no overhead: these are inline methods, hence a "zero-cost abstraction". Bonus: discover the `debug`, `.discar` and `.tapException` methods!

Ox feature tour, day 17: converting exceptions to `Either`s, and vice versa is trivial thanks to the inline `.catching[]` and `.orThrow` methods. A panic at one level, might become an expected error at another!

Ox feature tour, day 16: we propose error handling based on "panics" (exceptions) and "expected" errors, represented as Eithers. Working with the lattter is ergonomic thanks to Scala's boundary/break, and its Ox-provided specialization to Eithers using `either: and `.ok()`

Ox feature tour, day 15: Flows provide integration with Kafka, allowing one to implement the common publish-then-commit pattern using an elegant high-level, functional API.

Ox feature tour, day 14: declarative concurrency in flows - virtual threads are started (and terminated on error) safely, without ever needing to touch concurrency scopes! Signalling an error is as easy as throwing an exception.

Ox feature tour, day 13: flows provide I/O integration, declarative concurrency, and reactive streams compatibility!

Wasm 3.0 is completed, with major new features like GC and exception handling! Scala is now acknowledged as a language that compiles to WebAssembly 🚀 webassembly.org/news/2025-0... (1/2) #Wasm #Scala

Interested to try living on the bleeding edge nightly versions of Scala? A new repository to which Scala nightly versions has been introduced. You can now find all Scala nightly versions (including Scala 3 Next, 3.3 LTS, 2.12 and 2.13) under repo.scala-lang.org/ (1/2)

Ox feature tour, day 12: describe data streaming using operators you know and love from Akka Streams or FS2, using direct-style (no Futures or other wrappers!)

Ox feature tour, day 11: select exactly one clause to complete from a number of channels. This is the select you might know from Go: complementing the goroutine equivalent - forks (virtual threads) within a concurrency scope

Ox feature tour, day 10: use high-performance, queue-like channels, which can be completed as done, or short-circuited with an error Perfect for communicating virtual threads created within a concurrency scope!

🛠️ Next Scala Tooling Spree is coming up. 🗓️ It will take place on 18.09 17:30-19:30 CET. ✍️ If you'd like to participate please register by 16th here: forms.gle/yUurzS2KiM2...

Ox feature tour, day 9: use OxApp to conveniently access a top-level concurrency scope (for running app-wide background jobs), as well as ensure proper cleanup on external interruption (SIGINT/SIGTERM)

Ox feature tour, day 8: attach resources to concurrency scopes, so that they are guaranteed to be released, before the scope completes.

Ox feature tour, day 7: manage resources using try-catch-finally, for convenience written inline, using an inline method (a "zero-cost abstraction").

Ox feature tour, day 6: rate limit access to APIs or other resources using a straightforward direct-style API! Runs within a concurrency scope, ensuring proper error handling.

Hey, #ScalaCLI v1.9.0 is out! It's a small update which brings support for the new Scala 3 nightly repository. You can now try out the latest Scala 3.8 nightlies, and with it - the new, capture-checked Scala 3 standard library. (1/2)

Ox feature tour, day 5: the same schedule can be used for defining repeats. Bonus: you can also create a schedule from a cron expression!

Ox feature tour, day 4: retry computations using flexible schedules. Fixed, or exponential backoffs, jitter, maximum number of attempts, initial delays, max cumulative delays, filter on exceptions/results and more. Bonus: adaptive retries, known from the AWS client libraries!

Ox feature tour, day 3: when high-level concurrency is not enough, use structured concurrency scopes. Flexible API, guarded against misuse with #Scala's context functions! Plus, let-it-crash error handling known from actor systems,

Ox feature tour, day 2: race two computations. Once again, using Virtual Threads for minimal overhead & great performance. The loosing branch is interrupted, but you only get results once both threads have finished. Bonus: convert exceptions into `Either`s inline!

🛠️ Next Scala Tooling Spree is coming up. 🗓️ It will take place on 28.08 17:00-19:00 CET. ✍️ If you'd like to participate please register by 27th here: forms.gle/yUurzS2KiM2...

Ox feature tour, day 1: run two computations in parallel, using Java's Virtual Threads: minimal overhead, maximum performance. Full error handling: interrupting the other branch if needed, and only completing after both branches have finished. Guarantee of no dangling threads!

A stable release of Ox - 1.0.0 is now available - making direct-style #Scala production-feasible! In the coming days we'll be taking a deeper dive into the many features of Ox - pick your favourite! And in the meantime, why not explore Ox on your own?

Hey, #ScalaCLI v1.8.5 is out! And with it: - defaults set to Scala 3.7.2 - cross-input-type access to input paths - restored Scala CLI nightlies - implicit use of the new Sonatype Central snapshots repository and more, be sure to check the release notes: github.com/VirtusLab/s...

Take a look a newly released Metals v1.6.1! It includes: - New MCP tools and fixes - SQL highlighting - Updates to fuzzy matcher logic - New X-ray inlay hints Read the details in scalameta.org/metals/blog...

Did you know that whenever writing an expression in you debug console, whether Metals or Intellij, it will be able to use a special compiler version that is available in the Scala 3 compiler codebase itself?

🛠️ Next Scala Tooling Spree is coming up. 🗓️ It will take place on 31.07 at 17:00-19:00 CET. ✍️ If you'd like to participate please register by 29.07 here: forms.gle/yUurzS2KiM2....

Hey, Scala CLI v1.8.4 is out! 🚀 And with it, the publish sub-command support for the new Sonatype Central Portal. You can publish to Maven Central with Scala CLI again! That, and some other fixes, updates and improvements: github.com/VirtusLab/s...

Mill v1.0.0 has been released! :rocket: It's a major release, bringing a number of big improvements (and breaking changes :hammer_and_wrench:) Those include: - builds are now compiled with Scala 3.7.1 (moving directly from Scala 2.13) (1/2)

Some updates on Server-Side Wasm development in Scala🚀 Check out our new echo-server example: it runs with wasmtime serve and deploys to k8s using runwasi for blazingly fast startups. Stay tuned for more updates! github.com/scala-wasm/...

Zed Editor will now be able to use DAP, and Scala is not far behind! If you’d like to test it, we would encourage a brave developer to try and check out the work-in-progress PR at github.com/scalameta/m... created by a member of the great OSS community.

Hi all, 🛠️ Next Scala Tooling Spree is coming up. 📆 It will take place on June 26 at 17:00-19:00 CET. ✍️ If you'd like to participate please register by June 24 here: forms.gle/yUurzS2KiM2.... 🌍 You can find more information on the Tooling Spree website at scalameta.org/scala-tooli.... (1/2)