Changes since 8.15:

• allow small offsets for the PDF magic string [project0]
• add support for OJPEG tiffs [DarthSim]
• add "palette" metadata item to flag palette images [DarthSim]
• jxl load and save now support exif, xmp, animation [DarthSim]
• improved configure output
• add a filetype blocker for imagemagick
• add basic g_auto support
• support for long EXIF values [MarcosAndre]
• better system error messages on windows [kleisauke]
• add configurable max coordinate and vips_max_coord_get()
• improve kill handling
• PFM save and load now uses scRGB (ie. linear 0-1) [NiHoel]
• turn vips_addalpha into a VipsOperation [RiskoZoSlovenska]
• add vips_rawsave_target(), vips_rawsave_buffer() [akash-akya]
• vipsheader supports multiple "-f field" arguments [sergeevabc]
• webpsave has @target_size parameter to set desired size in bytes [john-parton]
• webpsave has @passes parameter to set number of passes to achieve desired target_size [john-parton]
• revise sRGB -> B_W coefficients [daniellovera]
• add vips_sdf(), vips_clamp(), vips_maxpair(), vips_minpair()
• more const for the C++ API [Julianiolo]
• deprecate "cache" (use tilecache instead)
• add tests for tokenisation
• add "unpack_complex" option to vips_getpoint()
• add deflate compression level setting to tiffsave [ruven]
• add "smart_deblock" to webpsave [goodusername123]

This is a first test release.