Prepare release 0.34 (#337)

* Warn only if less than 20% valid values

* Add rastrigin example

* Update py API doc

* Add python sampling example

* Bump version to 0.34

* Update changelog

* Update changelog

Author: relf

CHANGELOG.md

@@ -1,6 +1,16 @@
 # Changes
 
-## Version 0.34.0 - unreleased
+## Version 0.35.0 - unreleased
+
+## Version 0.34.0 - 17/11/2025
+
+* **Breaking changes**:
+  * Add Egor configuration validation by @relf in <https://github.com/relf/egobox/pull/335>
+  * Use Logarithm of Expected Improvement (LogEI) as the default infill strategy by @relf in <https://github.com/relf/egobox/pull/336>
+  * Enable middle points picker heuristic by @relf in <https://github.com/relf/egobox/pull/334>
+  * Add new surrogate API functions to optimize GP usage in Egor optimizer by @relf in <https://github.com/relf/egobox/pull/332>
+* Add Egor examples on rosenbrock, michalewicz and ackley test functions by @relf in <https://github.com/relf/egobox/pull/325>
+* Parallelize distance calculations and eliminate allocations in hot paths by @Copilot in <https://github.com/relf/egobox/pull/328>
 
 ## Version 0.33.0 - 11/10/2025