feat: release notes for 0.1.5; archive 0.1.5 iso; bump version to 0.1.6

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

montaukos.org/downloads.html

@@ -96,6 +96,7 @@
 <hr>
 <ul>
 <li><a href="#latest">Latest Release</a></li>
+<li><a href="#v015">v0.1.5</a></li>
 <li><a href="#v014">v0.1.4</a></li>
 <li><a href="#v013">v0.1.3</a></li>
 <li><a href="#v012">v0.1.2</a></li>
@@ -112,6 +113,55 @@
 <hr>
 
 <h2 id="latest">Latest Release</h2>
+
+<div class="box release-card" id="v015">
+<h3>MontaukOS 0.1.5</h3>
+<p class="release-meta">July 8, 2026</p>
+<br><p>It is recommended that users run MontaukOS in a virtual machine rather than on real hardware.</p>
+<h4>New</h4>
+<ul>
+<li>New Character Map app (<code>charmap</code>)</li>
+<li>New Power app (<code>powermgr</code>) for CPU power and thermal monitoring</li>
+<li>CPU power and thermal management for Intel CPUs</li>
+<li>Software-defined radio support: RTL-SDR (RTL2832U + R820T2) USB driver, kernel radio APIs, and an <code>sdr</code> demo tool</li>
+<li>Intel Bluetooth firmware loading performance improvements</li>
+<li>New default login-screen wallpaper (<code>0:/os/wallpapers/default.jpg</code>), used when no wallpaper is configured</li>
+</ul>
+<h4>Fixed</h4>
+<ul>
+<li>Fix partially broken Bluetooth pairing and reconnection</li>
+<li>Bluetooth audio (A2DP) setup and reconnection reliability</li>
+<li>HCI events spanning multiple USB packets are now reassembled correctly, fixing Intel Bluetooth controller bring-up hangs</li>
+<li>Bluetooth MAC addresses are now displayed in conventional MSB-first byte order in the userspace Bluetooth app</li>
+<li>Fixed the desktop app loading cap</li>
+<li>Cleanup: shared libraries renamed to drop the <code>lib</code> prefix, leftover test programs removed</li>
+</ul>
+<h4>Licensing</h4>
+<ul>
+<li>MontaukOS 0.1.5 is source-available: the <a href="license.html">MontaukOS Software License</a> permits use, study, modification, and free redistribution with attribution (commercial distribution still requires permission)</li>
+<li>Third-party license texts and notices now ship on the ISO (<code>0:/os/licenses/</code>), covering the Flat Remix icon theme (GPLv3), the DOOM engine (GPLv2), the Tiny C Compiler (LGPL-2.1), Lua (MIT), the bundled fonts (OFL-1.1 for JetBrains Mono, Noto Serif, and Roboto; AGPLv3 with font-embedding exception for C059), the Mozilla CA certificate bundle (MPL-2.0), Intel Bluetooth firmware (Intel redistributable license), and other components</li>
+<li>The proprietary DOOM shareware WAD (<code>doom1.wad</code>) is not distributed; the DOOM engine still ships, but users must supply their own game data</li>
+</ul>
+<h4>Included in ISO</h4>
+<ul>
+<li>MontaukOS SMP kernel</li>
+<li>Userspace bootstrap (<code>0:/os/init.elf</code>) and other essential system utilities</li>
+<li>MontaukOS desktop environment and graphical apps</li>
+<li>Manual pages (<code>0:/man</code>), readable via <code>man</code> command</li>
+<li>System CA certificates (<code>0:/os/certs/ca-certificates.crt</code>)</li>
+<li>Intel Bluetooth controller firmware (<code>0:/os/firmware/intel</code>)</li>
+<li>Third-party license texts and notices (<code>0:/os/licenses</code>)</li>
+<li>Tiny C Compiler (<code>tcc</code>) with MontaukOS headers and libraries (<code>0:/lib/tcc</code>)</li>
+<li>Lua 5.4 interpreter (<code>lua</code>) with headers and static library (<code>0:/lib/lua</code>)</li>
+<li>Flat Remix icon pack</li>
+<li>JetBrains Mono, Noto Serif, Roboto, and C059 Roman (open Century Schoolbook) TrueType fonts</li>
+<li>DOOM engine with SDL_mixer audio support (game data not included)</li>
+<li>Experimental HTTP server (<code>httpd</code>) and default page (<code>0:/www/index.html</code>)</li>
+<li>Default wallpaper - blossoms by Nikhil Kumar, Unsplash (<code>0:/os/wallpapers</code>)</li>
+</ul>
+</div>
+
+<h2>Release Archive</h2>
 <div class="box release-card" id="v014">
 <h3>MontaukOS 0.1.4</h3>
 <p class="release-meta">June 21, 2026</p>
@@ -158,7 +208,6 @@
 </ul>
 </div>
 
-<h2>Release Archive</h2>
 <div class="box release-card" id="v013">
 <h3>MontaukOS 0.1.3</h3>
 <p class="release-meta">June 7, 2026</p>