code: public static @Nonnull
      List<DetachedPlugin> getDetachedPlugins(@Nonnull VersionNumber since) {
          return getDetachedPlugins().stream()
                  .filter(detachedPlugin -> !detachedPlugin.getSplitWhen().isOlderThan(since))
                  .collect(Collectors.toList());
      }
docs: Get the list of plugins that have been detached since a specific Jenkins release version.
  
  @param since The Jenkins version.
  @return A {@link List} of {@link DetachedPlugin}s.
  @see #getDetachedPlugins()