Coffee GB v2.1.2 is released. Coffee GB is a Gameboy Color emulator written in Java 16 (core) and Kotlin (UI). It's meant to be a development exercise.

Features:
Full support for GB & GBC emulation.
Partial Super Gameboy emulation (borders and palette).
Cycle-exact CPU emulation. Each opcode is split into a few micro-operations (load value from memory, store it to register, etc.) and each micro-operation is run in a separate CPU cycle.
Quite compatible (all the Blargg's tests are passed, although some game still doesn't work)
Rollback-based netplay
MBC1-5 support
Battery saves
Support for zipped ROMs
ROM-based compatibility tests run from Maven

Coffee GB Changelog:
Coffee GB 2.1.2 adds desktop input recording and replay playback, improves the shared on-screen menus, expands automated compatibility coverage with the DocBoy test suite, and fixes visible game compatibility issues in Dragon Tales: Dragon Wings and Yu-Gi-Oh! Duel Monsters. It also adds a generic NEC television-remote signal for Game Boy Color infrared titles.
Merged pull requests
#652 — Improve on-screen menu usability by @trekawek
#653 — Add DocBoy integration test suite by @trekawek
#659 — Add desktop input recording and replay playback by @trekawek
#660 — Fix Dragon Tales HDMA graphics corruption by @trekawek
#661 — Add a generic TV remote for CGB infrared games by @trekawek
#662 — Fix Yu-Gi-Oh Early Days card graphics by @trekawek
Fixed issues
#651 — Another test suite to add, reported by @ScottNash042 and closed by #653
#656 — Dragon Tales: Dragon Wings graphics corruption, reported by @ScottNash042 and fixed by #660
#657 — Game Boy Color TV Remote infrared games, reported by @ScottNash042 and fixed by #661
#658 — Yu-Gi-Oh! Duel Monsters Early Days card graphics, reported by @ScottNash042 and fixed by #662
Non-PR changes
None. All non-mechanical changes in this release range are represented by the merged pull requests above; Maven version-transition commits are omitted.
Visual compatibility fix
Restored Mushroom Man card artwork in Coffee GB
Restored card artwork for #658.
Known platform limitations
On macOS, game controllers require a compatible system SDL2 installation; keyboard input and emulation remain usable without it.

Download: Coffee GB v2.1.2
Source: Here