#2666 changelog

Author: valentinsulzer

CHANGELOG.md

@@ -9,6 +9,7 @@
 
 ## Bug fixes
 
+- Fixed electrolyte conservation in the case of concentration-dependent transference number ([#2758](https://github.com/pybamm-team/PyBaMM/pull/2758))
 - Fixed `plot_voltage_components` so that the sum of overpotentials is now equal to the voltage ([#2740](https://github.com/pybamm-team/PyBaMM/pull/2740))
 
 ## Optimizations