Add breaking change to changelog

For some reason the final change in this changeset was causing my editor
to fail to parse markdown after that point, so I adjusted the line
length and that fixed it.

CHANGELOG.md

@@ -7,18 +7,25 @@ and this project uses [Semantic Versioning](https://semver.org/spec/v2.0.0.html)
 
 ## [Unreleased]
 
-### Changed
+### Added
 - `search_datasets` now accepts a `has_granules` keyword argument. Use
   `has_granules=False` to search for metadata about collections with no
   associated granules. The default value set in `DataCollections` remains `True`.
   ([#939](https://github.com/nsidc/earthaccess/issues/939))
   ([**@juliacollins**](https://github.com/juliacollins))
 
+### Changed
+- **Breaking**: Throw an error by default when login credentials are rejected. Pass
+  `earthaccess.login(..., raise_on_failure=False)` to disable and print a warning
+  instead. ([#946](https://github.com/nsidc/earthaccess/pull/946))
+  ([**@mfisher87**](https://github.com/mfisher87))
+
 ## [v0.13.0] - 2025-01-28
 
 ### Changed
-- Integration tests: Test are no longer randomized! this means each fail should be reproducible, we are testing the most
-  popular datasets from all DAACs, see files under tests/integration/popular_collections.
+- Integration tests: Test are no longer randomized! this means each fail should be
+  reproducible, we are testing the most popular datasets from all DAACs, see files under
+  tests/integration/popular_collections.
   ([#215](https://github.com/nsidc/earthaccess/issues/215))
   ([**@mfisher87**](https://github.com/mfisher87))