BREAKING CHANGE: removed urllib3 from solnlib dependencies

Author: sgoral-splunk

docs/release_6_0_0.md

@@ -1,8 +1,10 @@
-# Removed requests from solnlib
+# Removed requests and urllib3 from solnlib
 
-The `requests` library has been removed from solnlib, so solnlib now depends on the `requests` library from the running environment.
-By default, splunk delivers `requests` whose version depends on the splunk version. More information [here](https://docs.splunk.com/Documentation/Splunk/9.2.3/ReleaseNotes/Credits).
+The `requests` and `urllib3` libraries has been removed from solnlib, so solnlib now depends on the `requests` and `urllib3` libraries from the running environment.
+By default, Splunk delivers the above libraries and their version depends on the Splunk version. More information [here](https://docs.splunk.com/Documentation/Splunk/9.2.3/ReleaseNotes/Credits).
 
-Please note that if `requests` are installed in `<Add-on>/lib` e.g. as a dependency of another library, that version will be taken first. 
-If `requests` are missing from the add-on's `lib` directory, then `requests` provided from splunk will be used. In case the splunk `requests` version is not sufficient for you,
+**IMPORTANT**: `urllib3` is available in Splunk `v8.1.0` and later
+
+Please note that if `requests` or `urllib3` are installed in `<Add-on>/lib` e.g. as a dependency of another library, that version will be taken first.
+If `requests` or `urllib3` is missing in the add-on's `lib` directory, the version provided by Splunk will be used. In case the Splunk `requests` or `urllib3` version is not sufficient for you,
 you can deliver version you need by simply adding it to the `requirements.txt` or `pyproject.toml` file in your add-on.

pyproject.toml

@@ -40,7 +40,6 @@ classifiers = [
 
 [tool.poetry.dependencies]
 python = ">=3.7,<3.14"
-urllib3 = "<2"
 sortedcontainers = ">=2"
 defusedxml = ">=0.7"
 splunk-sdk = ">=1.6"