update changelog

Author: HDembinski

doc/changelog.qbk

@@ -7,6 +7,42 @@
 
 [section:changelog Changelog]
 
+[heading Boost 1.89]
+
+* Update CMake minimum version and Python detection in CMake
+* Improve documentation
+  * Add example on how to make an axis which accepts multiple value types that are not implicitly convertible
+  * Show how to use `histogram::fill` with a multidimensional histogram efficiently when data per dimension is already available as contiguous data
+* Don't use deprecated form of user-defined literal operator
+* Add support for modular build structure with b2
+* Fixed warnings in MSVC about narrowed types
+* Added collector accumulator, which stores all values in a bin
+* Internal changes to tests and classes in detail namespace
+
+[heading Boost 1.88]
+
+* No changes.
+
+[heading Boost 1.87]
+
+* No changes.
+
+[heading Boost 1.86]
+
+* No changes.
+
+[heading Boost 1.85]
+
+* No changes.
+
+[heading Boost 1.84]
+
+* No changes.
+
+[heading Boost 1.83]
+
+* No changes.
+
 [heading Boost 1.82]
 
 * Replace `detail::span` and `detail::make_span` with implementations in `boost::core`