#936 changelog [ci skip]

CHANGELOG.md

@@ -4,6 +4,10 @@
 
 -   Made `QuickPlot` compatible with Google Colab ([#935](https://github.com/pybamm-team/PyBaMM/pull/935))
 
+## Breaking changes
+
+-   Removed some inputs like `T_inf`, `R_g` and activation energies to some of the standard function parameters. This is because each of those inputs is specific to a particular function (e.g. the reference temperature at which the function was measured). To change a property such as the activation energy, users should create a new function, specifying the relevant property as a `Parameter` or `InputParameter` ([#942](https://github.com/pybamm-team/PyBaMM/pull/942))
+
 # [v0.2.1](https://github.com/pybamm-team/PyBaMM/tree/v0.2.1) - 2020-03-31
 
 New expression tree node types, models, parameter sets and solvers, as well as general bug fixes and new examples.