v0.28.0 - 29th March 2021

• Prebuilt binaries now include mozjpeg and libimagequant (BSD 2-Clause).

• Prebuilt binaries limit AVIF support to the most common 8-bit depth.

• Add mozjpeg option to jpeg method, sets mozjpeg defaults.

• Reduce the default PNG compressionLevel to the more commonly used 6.

• Reduce concurrency on glibc-based Linux when using the default memory allocator to help prevent fragmentation.

• Default missing edge properties of extend operation to zero. #2578

• Ensure composite does not clip top and left offsets. #2594 @SHG42

• Improve error handling of network failure at install time. #2608 @abradley

• Ensure @id attribute can be set for IIIF tile-based output. #2612 @edsilv

• Ensure composite replicates the correct number of tiles for centred gravities. #2626