A new release of mGBA, version 0.7.2, is available. This version is a bugfix release, which contains many stability and accuracy fixes. Notably, the 3DS version no longer hangs on non-CFW New 3DSes. An extensive list of changes follows after the cut.
Emulation fixes:

GB: Fix HALT when IE and IF unused bits are set (fixes #1349)
GB Timer: Fix timing adjustments when writing to TAC (fixes #1340)
GB Video: Fix window y changing mid-window (fixes #1345)
GB Video: Fix more window edge cases (fixes #1346)
GBA: Fix RTC on non-standard sized ROMs (fixes #1400)
GBA DMA: Fix DMA0-2 lengths (fixes #1344)
GBA Memory: Fix writing to OBJ memory in modes 3 and 5
GBA Memory: Prevent writing to mirrored BG VRAM (fixes #743)
GBA Video: Fix scanline cache with scale factor change edge cases
GBA Video: Fix sprite mosaic clamping (fixes #1008)
GBA Video: Implement mosaic on transformed sprites (fixes #5)

Other fixes:

3DS: Ensure core 2 can be used for threaded renderer (fixes #1371)
All: Fix several memory leaks
GB Core: Fix toggling WIN and OBJ being swapped
GBA: Fix skipping BIOS on irregularly sized ROMs
CMake: Fix .deb imagemagick dependencies
FFmpeg: Improve initialization reliability and cleanup
FFmpeg: Fix audio conversion producing gaps
LR35902: Fix disassembly of several CB-prefix instructions
LR35902: Fix trailing whitespace in disassembly
Qt: More app metadata fixes
Qt: Fix load recent from archive (fixes #1325)
Qt: Fix overrides getting discarded (fixes #1354)
Qt: Fix saved scale not getting set on resize (fixes #1074)
Qt: Fix crash in sprite viewer magnification (fixes #1362)
Qt: Fix adjusting magnification in tile viewer when not fitting to window
Qt: Fix bounded fast forward with Qt Multimedia
Qt: Fix saving settings with native FPS target
Wii: Fix aspect ratio (fixes #500)

Misc:

Qt: Add missing HEVC NVENC option (fixes #1323)
Qt: Improve camera initialization
Vita: Improved frame drawing speed

https://mgba.io/2019/05/25/mgba-0.7.2/
https://www.nintendomax.com/viewtopic.php?f=168&t=17024