+5. Update library ELF versioning in configure.ac (LIBTIFF_CURRENT,
+ LIBTIFF_REVISION, and LIBTIFF_AGE). These numbers have nothing to
+ do with the libtiff release version numbers.
+
+ Note that as of libtiff 4.X, proper ELF versioning is used so
+ please follow the rules listed in configure.ac. At a bare minimum,
+ you should increment LIBTIFF_REVISION for each release so that
+ installed library files don't overwrite existing files. If APIs
+ have been added, removed, or interface structures have changed,
+ then more care is required.
+
+6. Add an entry to Changelog similar to:
+
+ * libtiff 4.0.0 released.
+
+7. In the source tree do
+
+ ./autogen.sh
+
+ This step may be skipped if you have already been using a
+ maintainer build with current autoconf, automake, and libtool
+ packages. It is only needed when updating tool versions.