update to latest stable semver

circup.py

@@ -31,7 +31,7 @@ import shutil
 import json
 import zipfile
 from subprocess import check_output
-from semver import compare
+from semver import VersionInfo, parse
 import click
 import requests
 import appdirs
@@ -144,7 +144,7 @@ class Module:
         """
         if self.device_version and self.bundle_version:
             try:
-                return compare(self.device_version, self.bundle_version) < 0
+                return VersionInfo.parse(self.device_version) < VersionInfo.parse(self.bundle_version)
             except ValueError as ex:
                 logger.warning("Module '%s' has incorrect semver value.", self.name)
                 logger.warning(ex)
@@ -595,7 +595,7 @@ def main(verbose):  # pragma: no cover
     )
     latest_version = cp_release.url.split("/")[-1]
     try:
-        if compare(CPY_VERSION, latest_version) < 0:
+        if VersionInfo.parse(CPY_VERSION) < VersionInfo.parse(latest_version):
             click.secho(
                 "A newer version of CircuitPython ({}) is available.".format(
                     latest_version

requirements.txt

@@ -32,7 +32,7 @@ pytz==2019.2
 readme-renderer==24.0
 requests==2.22.0
 requests-toolbelt==0.9.1
-semver==2.8.1
+semver~=2.13
 six==1.12.0
 snowballstemmer==1.9.0
 Sphinx==2.2.0

setup.py

@@ -18,7 +18,7 @@ with open(path.join(here, "README.rst"), encoding="utf-8") as f:
     long_description = f.read()
 
 install_requires = [
-    "semver>=2.8.1",
+    "semver~=2.13",
     "Click>=7.0",
     "appdirs>=1.4.3",
     "requests>=2.22.0",