Explicit upcast in Java (30 sec read) ↕️
https://twitter.com/tagir_valeev/status/1356852454390923264

GraalVM Native Image Quick Reference (7 min read) 🏆
https://medium.com/graalvm/graalvm-native-image-quick-reference-4ceb84560fd8

Enhanced Deprecation in Kotlin (5 min read) ❎
https://todd.ginsberg.com/post/kotlin/deprecation

New Language Features Preview in Kotlin 1.4.30 (11 min read) 🎉
https://blog.jetbrains.com/kotlin/2021/02/new-language-features-preview-in-kotlin-1-4-30

JEP 356: Enhanced Pseudo-Random Number Generators (5 min read) 🔀
https://openjdk.java.net/jeps/356

SDKMAN! 5.11.0 released with completion (30 sec read) 🖥️
https://github.com/sdkman/sdkman-cli/releases/tag/5.11.0

JFrog to shut down JCenter and Bintray (7 min read) 🌇
https://www.infoq.com/news/2021/02/jfrog-jcenter-bintray-closure

Pinterest Describes an Architecture for Efficient Retrieval of Hierarchical Documents (3 min read) 📄
https://www.infoq.com/news/2021/02/pinterest-efficient-retrieval

Seeding a file server quickly (using Netcat and tar) 🚎
https://jmmv.dev/2021/02/seeding-a-file-server.html