diff --git a/README.md b/README.md
index 00241112..42aaf44a 100644
--- a/README.md
+++ b/README.md
@@ -27,18 +27,22 @@ for information on writing specs, and [the FAQ](https://jasmine.github.io/pages/
 Jasmine tests itself across popular browsers (Safari, Chrome, Firefox, and
 Microsoft Edge) as well as Node.
 
-| Environment       | Supported versions       |
-|-------------------|--------------------------|
-| Node              | 18, 20, 22               |
-| Safari            | 15-17                    |
-| Chrome            | Evergreen                |
-| Firefox           | Evergreen, 102, 115, 128 |
-| Edge              | Evergreen                |
+| Environment       | Supported versions         |
+|-------------------|----------------------------|
+| Node              | 18, 20, 22                 |
+| Safari            | 15-17                      |
+| Chrome            | Evergreen                  |
+| Firefox           | Evergreen, 102*, 115*, 128 |
+| Edge              | Evergreen                  |
 
 For evergreen browsers, each version of Jasmine is tested against the version of the browser that is available to us
 at the time of release. Other browsers, as well as older & newer versions of some supported browsers, are likely to work.
 However, Jasmine isn't tested against them and they aren't actively supported. 
 
+\* Environments that are past end of life are supported on a best-effort basis.
+They may be dropped in a future minor release of Jasmine if continued support
+becomes impractical.
+
 To find out what environments work with a particular Jasmine release, see the [release notes](https://github.com/jasmine/jasmine/tree/main/release_notes).
 
 ## Maintainers