Update documentation on zlib compatibility

1 files changed, 7 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 6b726fc5..6734cda3 100644
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+++ b/ChangeLog
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 2023-12-20  Jay Berkenbilt  <ejb@ql.org>
 
+	* Update code and tests so that qpdf's test suite no longer
+	depends on the output of any specific zlib implementation. This
+	makes it possible to get a fully passing test suite with any
+	API-compatible zlib library. CI tests with the default zlib as
+	well as zlib-ng (including verifying that zlib-ng is not the
+	default), but any zlib implementation should work. Fixes #774.
+
 	* Bug fix: with --compress-streams=n, don't compress object, XRef,
 	or linearization hint streams.