Oleg Tkachenko 🇺🇦

Oleg Tkachenko 🇺🇦

@olegtk.bsky.social

An engineer on the Microsoft VisualStudio team. Ukraine (Luhansk)🇺🇦→Israel🇮🇱→US🇺🇸. Opinions are solely mine.

224 followers81 following1.1K posts

Oleg Tkachenko 🇺🇦 reposted

VS Build 2026 is STACKED 🤖 • Agents that debug/profile/test with you • Pre-build error checks = fewer facepalms • AI merge-conflict assist 🙏 • Web Forms → Blazor modernization + Aspire boosts • BYOK/BYOM flexibility! 👉 Read the blog: buff.ly/xxeeZEM

💥🎨 Hate me all you want, but colorized emojis are coming in Visual Studio 18.7. COLRv0 implemented at WPF layer so across all UI, not limited to editor. Also support for new-ish emojis added in Unicode 14.

Oleg Tkachenko 🇺🇦 reposted

Claude Opus 4.7 in Visual Studio 🎉 ...bringing stronger reasoning, smoother edits, and a surprising amount of “wow, that actually understood my code” energy — all without leaving the IDE. Live since March 16, it’s built for big projects and devs who love a smart sidekick. Start ➡️ buff.ly/PWqZhFI

Oleg Tkachenko 🇺🇦 reposted

Your VS Code just got a fresh look! 🎨 The new default themes, VS Code Light and VS Code Dark, bring a modern, refined design while keeping the familiar usability you love. ⭐ Bonus: these themes automatically match your OS light/dark mode.

Oleg Tkachenko 🇺🇦 reposted

🎉 Visual Studio turns 29 today! Here’s to 29 years of: • IntelliSense magic • Build‑break heartbreak • Refactors that save the day • Extensions we can’t live without • An IDE that keeps evolving with us Happy birthday, Visual Studio — still the place where great code begins. 💜

Oleg Tkachenko 🇺🇦 reposted

Replying to @vcdgf555.bsky.social

If the state can label a law-abiding citizen doing nothing but exercising their rights as a domestic terrorist – in spite of overwhelming evidence to the contrary – then no one (regardless of political persuasion) is safe.

Oleg Tkachenko 🇺🇦 reposted

I think one of the subtler reasons senior developers are so excited about agents is the prospect of a coworker with absolutely no ego to bruise. I’d feel bad telling someone who worked for a week on something, “No, that’s not what I wanted, throw it out and start again.” No such problem with agents.

Oleg Tkachenko 🇺🇦 reposted

There seems to be an ongoing supply chain attack or suspicious activity on NuGet .org, where a user called darklord is trying to gain legitimacy or something by sending thousands of become owner of their packages requests, don't accept, report to @nuget.org #dotnet #nuget

Oleg Tkachenko 🇺🇦 reposted

Did you know Windows 11 has an option to end tasks right from the taskbar? 👀 So you don't need to open task manager - you can just right click the app and end it from there

Oleg Tkachenko 🇺🇦 reposted

Replying to @kajakallas.bsky.social

We also cannot let our dispute distract us from the our core task of helping to end Russia’s war against Ukraine. (2/2)

Oleg Tkachenko 🇺🇦 reposted

China and Russia must be having a field day. They are the ones who benefit from divisions among Allies. If Greenland’s security is at risk, we can address this inside NATO. Tariffs risk making Europe and the United States poorer and undermine our shared prosperity. (1/2)

Oleg Tkachenko 🇺🇦 reposted

Boost .NET performance with C# Source Generators! Skip runtime reflection, enable AOT, and automate boilerplate for faster apps. Watch Jim Wooley’s session replay for logging, regex, JSON tips + Roslyn insights. 🔗 msft.it/63323t2EwP #dotnet #CSharp

msft.itC# Source Generators – Why and HowIn this recorded Live! 360 session, you’ll learn how C# source generators work, why they matter, and how they can dramatically improve app performance by eliminating runtime reflection, reducing allocations, and enabling ahead-of-time (AOT) execution. Jim Wooley walks through real examples, from logging and regex optimization to JSON serialization, and shows how incremental generators improve build performance and keep generated code in sync as you type. You’ll also explore how to write your own source generator using Roslyn APIs, understand syntax trees and semantic models, and validate generators with unit tests. If you're building .NET apps and want to automate boilerplate, remove reflection, or tune your app for speed, this session gives you the foundations to get started. 🔑 What You’ll Learn • What source generators are and how they fit into meta-programming • How generators eliminate reflection and support AOT compilation • Real examples: logging, regex, JSON, validation, mappers • How incremental generators improve performance over older models • How to explore Roslyn syntax trees & semantic models • How to write your own generator using attributes & visitors • Unit testing and debugging approaches for source generators • Performance impacts and comparisons (AutoMapper, Mapster, mocking libs) ⏱️ Chapters 00:00 Intro + What source generators are & why they exist 02:54 Eliminating reflection and enabling AOT 05:44 How source generators differ from GenAI 08:05 Examples in .NET: logging, regex, JSON, validation 11:58 Demo: Logging generator & partial methods 14:46 Demo: Regex generator & performance benefits 16:14 Demo: JSON serialization generator 17:40 Live change-tracking: how generators respond to edits 19:20 Using attributes to trigger generation 20:00 Intro to Roslyn syntax trees & code analysis 26:05 Navigating syntax with the Syntax Visualizer 29:32 Understanding attributes & metadata via Roslyn APIs 31:00 Demo: Building a simple CSV generator 35:55 Classic (non-incremental) generator architecture 38:30 Walking the syntax tree & extracting semantic info 41:52 Generating new code with StringBuilder 43:10 Incremental generators & why they matter 45:30 Transformations, caching, and performance optimization 47:25 Using records and value semantics in generator pipelines 49:00 Executing generation & adding output to the compilation 50:55 Demo: Extended CSV generator with new properties 54:00 How to test generators with xUnit & Verify snapshots 58:30 Debugging generators (best practices & pitfalls) 1:01:00 How Roslyn builds trees, tokens, trivia & factories 1:01:49 When meta-programming makes sense (mapping, DTOs, reflection removal) 1:03:00 Performance comparisons (AutoMapper, Mapster, mocking frameworks) 1:06:20 Licensing, open source considerations & practical guidance 1:08:48 Q&A + extending the sample generator 1:10:03 Additional resources & where to go next 👤 Speaker: Jim Wooley Senior Principal, Slalom Consulting 🔗 Links • Jim's Roslyn Labs repo: https://msft.it/63325t2EwH • Explore more Live! 360 sessions: https://msft.it/63327t2EwJ • Check out upcoming VS Live! events: https://msft.it/63321t2Ew3 #csharp #dotnet #visualstudio #roslyn

Oleg Tkachenko 🇺🇦 reposted

Exclusive: footage of a record number of Shahed takedowns in a single night 🚀 24 Shaheds downed — a national record held by a fighter with the callsign Miguel from the 1020th Anti-Aircraft Missile and Artillery Regiment.

mermaid FTW

Visual Studio@visualstudio.com

Visual Studio now supports rendering Mermaid diagrams in the Markdown editor, where you can provide your own Mermaid syntax or have Copilot generate it for you! Here's how to visualize complex data structures and workflows directly within your editor, msft.it/63328tsOdE

Oleg Tkachenko 🇺🇦 reposted

In this quick how to... Jessie demonstrates two examples of how to leverage URL context with Copilot Chat to get tailored responses. Just by pasting in the url directly, you can take advantage specific resources to guide Copilot to the perfect result. 👀 msft.it/63321tmAdd

This

Jamie Taylor@gaprogman.com

𝗣𝗼𝘀𝘁 𝟲/𝟳: Velocity metrics from the past year: • 4,500 user-reported bugs fixed (18 per workday) • 290 feature requests implemented (1.2 per workday) This trend is accelerating. The team's approach: make Visual Studio as "lovable" as possible. Details matter. Paper cuts matter.

Oleg Tkachenko 🇺🇦 reposted

#CopilotChat in #VisualStudio now lets you add URL context—paste a link and get answers grounded in live docs, frameworks, or project resources. It’s a faster path to accurate guidance, better troubleshooting, and richer explanations right in the IDE. Try it: msft.it/63323tYH7U

Oleg Tkachenko 🇺🇦 reposted

Oleg Tkachenko 🇺🇦 reposted

Replying to @gameonysus.bsky.social

I think this is a bit of an overreaction. “No gen-ai use in code” disqualifies anyone using Visual Studio as that’s how local offline Intellicode in-line suggestions and completions work.

Oleg Tkachenko 🇺🇦 reposted

Behind the Scenes with #VisualStudio Keyboard Shortcuts! In this video, Mads takes us on a deep dive into the magic behind the system. - Setting scope - Applying mapping schemes - Multi-key combos - Levelling up with Keyboard Hero extension msft.it/63322t9I7n #VSToolbox

Oleg Tkachenko 🇺🇦 reposted

Visual Studio 2026 is faster and packed with healthy AI integration. I may be old-school, but VS still feels like home. Guess you can teach an old IDE new tricks! 🖥️🤖 #VisualStudio #AI #DevLife

Oleg Tkachenko 🇺🇦 reposted

Visual Studio 2026 18.1.1 has been released. I strongly recommend upgrading if you're using ReSharper, as it fixes an issue that was making startup significantly slower. Thanks a lot to the VS team for their reactivity!

Oleg Tkachenko 🇺🇦 reposted

Get help from Copilot easier than ever, simply by clicking through the context menu in your Editor! You will see multiple tasks and options that Copilot can help you with. This video shows you how it all works: msft.it/63320tcuBG

Oleg Tkachenko 🇺🇦 reposted

#VisualStudio2026 just made Git workflows smoother than ever. ...from faster branch switching to effortless stashing, commit messages, and AI‑powered code reviews, your daily dev flow gets a serious upgrade. Read the blog: msft.it/63329tijFL #GitWorkflow

Oleg Tkachenko 🇺🇦 reposted

Visual Studio 2026 is here—and it’s redefining the developer experience. In this keynote from Live! 360 Orlando, Mads Kristensen and Nik Karpinsky share how they built a faster, smarter IDE with AI deeply integrated into your workflow. aka.ms/L360-VS2026Key

Oleg Tkachenko 🇺🇦 reposted

.NET Conf session replay: Boost productivity with GitHub Copilot in Visual Studio: ✨ Smart suggestions ✨ Inline chat ✨ Test generation Learn best practices for AI-assisted dev. ▶ msft.it/63326tgv1O #GitHubCopilot #dotNETConf

Oleg Tkachenko 🇺🇦 reposted

Thank you to all the developers who attended VSLive! 2025—your networking and enthusiasm made this event what it was. We can’t wait for more networking and learning in 2026. 💡 Comment **“VSLive2026”** for insider info and **exclusive discounts**. Save your spot: msft.it/63325tgvSb

Oleg Tkachenko 🇺🇦 reposted

And Ukrainian journalists, civil society, and legal institutions still work.

Anne Applebaum@anneapplebaum.wsocial.eu

The baroque corruption schemes playing out in America and Russia completely outclass the kickback scandal in Ukraine. www.theatlantic.com/internationa...

Oleg Tkachenko 🇺🇦 reposted

#dotNETConf session replay: Visual Studio Debugger Go beyond basic breakpoints with advanced techniques: ✅ Conditional breakpoints ✅ Tracepoints & data breakpoints ✅ AI-powered insights for faster issue detection 👉 msft.it/63323tbayV #Debugging

msft.itVisual Studio Debugger: Advanced TechniquesMaster the art of debugging with Visual Studio's most powerful features and hidden gems. This session goes beyond basic breakpoints to explore advanced debugging techniques that will transform how you troubleshoot and understand your code. Learn about conditional breakpoints, tracepoints, data breakpoints, and the new AI-powered debugging insights that help you identify issues faster. Discover time-saving tips for debugging async code, understanding memory issues, and leveraging the watch window and immediate window like a pro. Elevate your debugging skills and become more efficient at solving even the most challenging bugs. .NET 10 — The most intelligent and unified .NET yet: https://msft.it/63324tbay8 .NET Aspire 13 — Simplified orchestration for cloud-native apps: https://msft.it/63325tbayD https://msft.it/63326tbayE Core 10 — Modern, secure, and full-stack web development: https://msft.it/63327tbay1 .NET MAUI 10 — Build beautiful apps on every platform: https://msft.it/63328tbayG C# 14 — A more expressive and productive language: https://msft.it/63329tbayH F# 10 — Safer, faster, and more functional than ever: https://msft.it/63320tbayy Visual Studio 2026 — Faster, smarter, and built for the future: https://msft.it/63321tbayJ .NET Conf 2025 — A global celebration of .NET innovation: https://msft.it/63322tbayK Connect with .NET: Blog: https://msft.it/63323tbayz Twitter: https://msft.it/63324tbayM TikTok: https://msft.it/63325tbay3 Mastodon: https://msft.it/63326tbayO LinkedIn: https://msft.it/63327tbayP Facebook: https://msft.it/63328tbayu Docs: https://msft.it/63329tbayR Forums: https://msft.it/63320tbayr 🙋‍♀️Q&A: https://msft.it/63321tbayT 👨‍🎓Microsoft Learn: https://msft.it/63322tbayp #dotnet

This

Dare Obasanjo@carnage4life.bsky.social

There’s a growing view that we can’t LLM our way to AGI. We’re replaying the 1980s expert-systems era by pretraining for every scenario instead of building systems that truly learn. We have impressive outcomes like Waymo, but you won’t replace workers without systems that can learn from experience