Version 5.0.0

CHANGELOG.md

@@ -1,3 +1,12 @@
+### Version 5.0.0
+- [Breaking] Bump minimum Rust version to 1.46.0
+- [Bugfix] Avoid many panics that may occur on broken files
+- [Bugfix] Fix race condition that may cause tests to fail
+- [Performance] Optimizations to unfiltering and copying
+- [Feature] Add `--ng` option to skip grayscale reduction
+- [Feature] Also preserve timestamps when using `--preserve`
+- [Misc] Bump `crc` to 2.x
+
 ### Version 4.0.3
 - Bump itertools to 0.10.x
 - Temporarily disable i686 releases, which were failing due to an odd linker issue,

Cargo.lock

@@ -1,5 +1,7 @@
 # This file is automatically @generated by Cargo.
 # It is not intended for manual editing.
+version = 3
+
 [[package]]
 name = "adler"
 version = "1.0.2"
@@ -413,7 +415,7 @@ dependencies = [
 
 [[package]]
 name = "oxipng"
-version = "4.0.3"
+version = "5.0.0"
 dependencies = [
  "bit-vec",
  "byteorder",

Cargo.toml

@@ -16,7 +16,7 @@ license = "MIT"
 name = "oxipng"
 repository = "https://github.com/shssoichiro/oxipng"
 build = "build.rs"
-version = "4.0.3"
+version = "5.0.0"
 
 [badges]
 travis-ci = { repository = "shssoichiro/oxipng", branch = "master" }

README.md

@@ -97,36 +97,36 @@ Oxipng is open-source software, distributed under the MIT license.
 
 ## Benchmarks
 
-Tested oxipng 4.0.0 (compiled on rustc 1.47.0 (18bf6b4f0 2020-10-07)) against OptiPNG version 0.7.7 on AMD Ryzen 7 4800H with Radeon Graphics with 16 logical cores
+Tested oxipng 5.0.0 (compiled on rustc 1.55.0-nightly (7a16cfcff 2021-07-11)) against OptiPNG version 0.7.7 on AMD Ryzen 7 4800H with Radeon Graphics with 16 logical cores
 
 
 ```
 
 Benchmark #1: ./target/release/oxipng -P ./tests/files/rgb_16_should_be_grayscale_8.png
-  Time (mean ± σ):     125.8 ms ±  16.7 ms    [User: 296.4 ms, System: 19.5 ms]
-  Range (min … max):    99.4 ms … 154.2 ms    24 runs
+  Time (mean ± σ):     128.8 ms ±  14.2 ms    [User: 296.0 ms, System: 14.3 ms]
+  Range (min … max):    98.8 ms … 152.3 ms    21 runs
  
 Benchmark #2: optipng -simulate ./tests/files/rgb_16_should_be_grayscale_8.png
-  Time (mean ± σ):     248.8 ms ±  20.5 ms    [User: 247.6 ms, System: 1.6 ms]
-  Range (min … max):   210.6 ms … 267.5 ms    12 runs
+  Time (mean ± σ):     254.2 ms ±  16.0 ms    [User: 252.8 ms, System: 1.2 ms]
+  Range (min … max):   208.4 ms … 263.8 ms    14 runs
  
 Summary
   './target/release/oxipng -P ./tests/files/rgb_16_should_be_grayscale_8.png' ran
-    1.98 ± 0.31 times faster than 'optipng -simulate ./tests/files/rgb_16_should_be_grayscale_8.png'
+    1.97 ± 0.25 times faster than 'optipng -simulate ./tests/files/rgb_16_should_be_grayscale_8.png'
 
 
 
 Benchmark #1: ./target/release/oxipng -o4 -P ./tests/files/rgb_16_should_be_grayscale_8.png
-  Time (mean ± σ):     140.5 ms ±  20.4 ms    [User: 648.5 ms, System: 24.9 ms]
-  Range (min … max):    72.7 ms … 175.7 ms    38 runs
+  Time (mean ± σ):     141.4 ms ±  14.9 ms    [User: 611.7 ms, System: 21.1 ms]
+  Range (min … max):   100.2 ms … 160.4 ms    23 runs
  
 Benchmark #2: optipng -o 4 -simulate ./tests/files/rgb_16_should_be_grayscale_8.png
-  Time (mean ± σ):     743.3 ms ±  21.3 ms    [User: 741.7 ms, System: 1.8 ms]
-  Range (min … max):   718.8 ms … 769.6 ms    10 runs
+  Time (mean ± σ):     730.0 ms ±  25.9 ms    [User: 728.0 ms, System: 1.2 ms]
+  Range (min … max):   713.3 ms … 768.2 ms    10 runs
  
 Summary
   './target/release/oxipng -o4 -P ./tests/files/rgb_16_should_be_grayscale_8.png' ran
-    5.29 ± 0.78 times faster than 'optipng -o 4 -simulate ./tests/files/rgb_16_should_be_grayscale_8.png'
+    5.16 ± 0.58 times faster than 'optipng -o 4 -simulate ./tests/files/rgb_16_should_be_grayscale_8.png'
 
 ```