docs: describe 0.1 series in release callouts (#3732)

Signed-off-by: Drew Newberry <anewberry@nvidia.com>

Author: drew

README.md

@@ -14,7 +14,7 @@
 [![Documentation](https://img.shields.io/badge/docs-latest-brightgreen)](https://docs.nvidia.com/openshell/latest/index.html)
 
 > [!IMPORTANT]
-> **New in OpenShell 0.1.0:** a stable release cadence, new isolation primitives, an expanded extension surface, and new APIs. [Read the 0.1.0 upgrade guide](https://docs.nvidia.com/openshell/latest/upgrade/0-1-0).
+> **New in OpenShell 0.1.x:** a stable release cadence, new isolation primitives, an expanded extension surface, and new APIs. [Read the 0.1.0 upgrade guide](https://docs.nvidia.com/openshell/latest/upgrade/0-1-0).
 
 OpenShell is the safe, private runtime for fleets of autonomous AI agents. Agents are most useful when they can read files, install packages, call APIs, and use credentials. OpenShell gives them that capability without giving them unrestricted access to your data, secrets, or network. You declare what each agent can touch in a policy, and OpenShell enforces it.
 

docs/about/overview.mdx

@@ -11,7 +11,7 @@ position: 1
 NVIDIA OpenShell is an open-source runtime for executing fleets of autonomous AI agents in sandboxed environments with kernel-level isolation. It combines sandbox runtime controls and a declarative YAML policy so teams can run agents without giving them unrestricted access to local files, credentials, and external networks.
 
 <Note>
-New in OpenShell 0.1.0: a [stable release cadence](/about/support-matrix#releases), new [isolation primitives](/about/architecture), and an expanded [extension surface](/extensibility/overview), along with much more.
+New in OpenShell 0.1.x: a [stable release cadence](/about/support-matrix#releases), new [isolation primitives](/about/architecture), and an expanded [extension surface](/extensibility/overview), along with much more.
 
 See our [upgrade guide](/upgrade/0-1-0) for everything that's changed.
 </Note>

docs/index.mdx

@@ -36,7 +36,7 @@ nothing more, governed by declarative policies that prevent unauthorized file ac
 uncontrolled network activity.
 
 <Note>
-New in OpenShell 0.1.0: a [stable release cadence](/about/support-matrix#releases), new [isolation primitives](/about/architecture), and an expanded [extension surface](/extensibility/overview), along with much more.
+New in OpenShell 0.1.x: a [stable release cadence](/about/support-matrix#releases), new [isolation primitives](/about/architecture), and an expanded [extension surface](/extensibility/overview), along with much more.
 
 See our [upgrade guide](/upgrade/0-1-0) for everything that's changed.
 </Note>

fern/docs.yml

@@ -60,7 +60,7 @@ versions:
     path: ../docs/index.yml
     slug: dev
     announcement:
-      message: '<span style="display: block; padding: 0.375rem 0; text-align: left;"><strong>New in OpenShell 0.1.0:</strong> a stable release cadence, new isolation primitives, an expanded extension surface, and new APIs. <a href="https://docs.nvidia.com/openshell/dev/upgrade/0-1-0" target="_blank" rel="noreferrer">Read the 0.1.0 upgrade guide</a>.</span>'
+      message: '<span style="display: block; padding: 0.375rem 0; text-align: left;"><strong>New in OpenShell 0.1.x:</strong> a stable release cadence, new isolation primitives, an expanded extension surface, and new APIs. <a href="https://docs.nvidia.com/openshell/dev/upgrade/0-1-0" target="_blank" rel="noreferrer">Read the 0.1.0 upgrade guide</a>.</span>'
 
 redirects:
   - source: "/openshell/latest/kubernetes/sandbox-runtime"