Bump version to 0.2.0

Author: peterc

CHANGELOG.md

@@ -1,5 +1,31 @@
 # Changelog
 
+## 0.2.0
+
+New features:
+
+- Progressive JPEG decoding (SOF2) with spectral selection and successive approximation
+- `Image#each_rgb` for iterating pixels without per-pixel struct allocation
+- `PureJPEG::DecodeError` exception class for all decoding errors
+- Validation of custom quantization tables (length and value range)
+
+Performance:
+
+- Packed integer pixel storage in `Image` eliminates per-pixel object allocation on decode (~6x faster decode)
+- Fast path for encoder pixel extraction from packed sources (`ChunkyPNGSource`, `Image`)
+- `BitReader#read_bits` fast path when buffer already has enough bits
+- `BitWriter` builds a `String` directly instead of `Array` + `pack`
+- `Huffman.build_table` returns an `Array` for O(1) lookup instead of `Hash`
+- Faster scan data extraction using `String#index`
+
+Fixes:
+
+- JPEG data detection uses SOI marker check instead of null-byte heuristic
+- `RawSource` pixels default to black instead of `nil`
+- `BitReader` bounds check for truncated 0xFF sequences
+- `JFIFReader` bounds check when reading past end of data
+- Fixed dead tautological check in AC encoding EOB logic
+
 ## 0.1.0
 
 Initial release.

lib/pure_jpeg/version.rb

@@ -1,5 +1,5 @@
 # frozen_string_literal: true
 
 module PureJPEG
-  VERSION = "0.1.0"
+  VERSION = "0.2.0"
 end