diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0046eb05..3ee306e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,16 +2,23 @@
 
 All notable changes to this project will be documented in this file.
 
-## [2.5.0] - 2023-xx-xx
+## [2.5.0] - 2023-01-07
 ### Added
+- Alias `gm` for `Obs.gamma_method` added.
 - Hotelling t-squared p-value added for correlated fits.
 - String conversion of numpy arrays containing `Obs` improved.
-- Alias `gm` for `Obs.gamma_method` added.
 - Input routine for xSF measurement program added.
 
 ### Fixed
 - Complex valued `Corr` objects fixed.
 - Small bug in `qtop_projection` fixed.
+- Bug in `Corr.spaghetti_plot` fixed which appeared in connection with replica separators.
+
+### Changed
+- Merged `Obs` are no longer filtered as this lead to inconsistent `idl`s in some edge cases. Error estimates are unaffected up to filter precision.
+
+### Removed
+- Removed the `Obs` attribute `is_merged` as this information was only needed for the filtering. The change results in a ~1.15x speed up in the multiplication of two `Obs`.
 
 ## [2.4.0] - 2022-12-01
 ### Added