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        <title>Smily API Changelog</title>
        <link>https://developers.bookingsync.com/changelog</link>
        <description>Stay up to date with the latest Smily API changes, features, and fixes.</description>
        <lastBuildDate>Wed, 13 May 2026 00:00:00 GMT</lastBuildDate>
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        <generator>https://github.com/jpmonette/feed</generator>
        <language>en</language>
        <copyright>Copyright 2026 Smily</copyright>
        <item>
            <title><![CDATA[Version 4.10.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/05/13/version-4-10-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/05/13/version-4-10-0</guid>
            <pubDate>Wed, 13 May 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- 📚 Document how the channel attribute on an Inbox Message controls relay to the originating platform (Airbnb, Booking.com, etc.) and how to derive the right value from the Conversation's defaultchannel. See the Inbox Messaging guide.]]></description>
            <content:encoded><![CDATA[<ul>
<li>📚 Document how the <code>channel</code> attribute on an <a href="https://developers.bookingsync.com/reference/endpoints/inbox_messages">Inbox Message</a> controls relay to the originating platform (Airbnb, Booking.com, etc.) and how to derive the right value from the Conversation's <code>default_channel</code>. See the <a href="https://developers.bookingsync.com/guides/understanding-inbox-messaging#sending-a-message-to-the-channel">Inbox Messaging guide</a>.</li>
</ul>]]></content:encoded>
            <category>Improvements</category>
            <category>Documentation</category>
        </item>
        <item>
            <title><![CDATA[Version 4.11.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/05/13/version-4-11-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/05/13/version-4-11-0</guid>
            <pubDate>Wed, 13 May 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- 📚 Document that startat and endat on Create a new booking must be full datetimes whose time-of-day matches the rental's checkintime / checkouttime. Date-only values get coerced to midnight and trip the "is within a used period" validation against adjacent bookings. The booking-creation example payloads now use full datetimes instead of STARTAT / ENDAT placeholders.]]></description>
            <content:encoded><![CDATA[<ul>
<li>📚 Document that <code>start_at</code> and <code>end_at</code> on <a href="https://developers.bookingsync.com/reference/endpoints/bookings#create-a-new-booking">Create a new booking</a> must be full datetimes whose time-of-day matches the rental's <code>checkin_time</code> / <code>checkout_time</code>. Date-only values get coerced to midnight and trip the "is within a used period" validation against adjacent bookings. The booking-creation example payloads now use full datetimes instead of <code>START_AT</code> / <code>END_AT</code> placeholders.</li>
</ul>]]></content:encoded>
            <category>Improvements</category>
            <category>Documentation</category>
        </item>
        <item>
            <title><![CDATA[Version 4.9.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/05/07/version-4-9-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/05/07/version-4-9-0</guid>
            <pubDate>Thu, 07 May 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Expose startatglobal and endatglobal on the Booking resource. These are the booking's check-in and check-out as true UTC instants (rental's timezone applied), suitable for absolute time-window comparisons. The existing startat and endat remain wall-clock values in the rental's local timezone.]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Expose <code>start_at_global</code> and <code>end_at_global</code> on the <a href="https://developers.bookingsync.com/reference/endpoints/bookings">Booking</a> resource. These are the booking's check-in and check-out as true UTC instants (rental's timezone applied), suitable for absolute time-window comparisons. The existing <code>start_at</code> and <code>end_at</code> remain wall-clock values in the rental's local timezone.</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.8.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/05/06/version-4-8-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/05/06/version-4-8-0</guid>
            <pubDate>Wed, 06 May 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- 🐞 Webhook deliveries now respect each application's per-account rental exposure (whitelist / blacklist) configuration, mirroring the visibility of GET /rentals. Rental-scoped events (booking, inquiry, photo, payment, review_*, etc.) are only delivered for rentals exposed to the receiving application. See Webhook subscriptions → Rental access scope.]]></description>
            <content:encoded><![CDATA[<ul>
<li>🐞 Webhook deliveries now respect each application's per-account rental exposure (whitelist / blacklist) configuration, mirroring the visibility of <code>GET /rentals</code>. Rental-scoped events (<code>booking_*</code>, <code>inquiry_*</code>, <code>photo_*</code>, <code>payment_*</code>, <code>review_*</code>, etc.) are only delivered for rentals exposed to the receiving application. See <a href="https://developers.bookingsync.com/guides/webhook-subscriptions#rental-access-scope">Webhook subscriptions → Rental access scope</a>.</li>
</ul>]]></content:encoded>
            <category>Bug Fixes</category>
        </item>
        <item>
            <title><![CDATA[Version 4.7.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/05/04/version-4-7-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/05/04/version-4-7-0</guid>
            <pubDate>Mon, 04 May 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Return Retry-After header on 429 rate limit responses, and clarify rate limiting scope (per OAuth application, no per-endpoint sub-limits).]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Return <code>Retry-After</code> header on <code>429</code> rate limit responses, and clarify <a href="https://developers.bookingsync.com/reference#rate-limiting">rate limiting</a> scope (per OAuth application, no per-endpoint sub-limits).</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.6.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/04/27/version-4-6-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/04/27/version-4-6-0</guid>
            <pubDate>Mon, 27 Apr 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Document the difference between map and mapwithpricevariation on the Mid Term Rate Map endpoint, and how the per-day price modifier is resolved from Applications Periods Rentals and the Application's defaultpriceincrease.]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Document the difference between <code>map</code> and <code>map_with_price_variation</code> on the <a href="https://developers.bookingsync.com/reference/endpoints/mid_term_rate_maps">Mid Term Rate Map</a> endpoint, and how the per-day price modifier is resolved from <a href="https://developers.bookingsync.com/reference/endpoints/applications_periods_rentals">Applications Periods Rentals</a> and the Application's <code>default_price_increase</code>.</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.5.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/04/14/version-4-5-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/04/14/version-4-5-0</guid>
            <pubDate>Tue, 14 Apr 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Document the application lock behavior when setting nightlyratesmanagedexternally to true on a Rental: rates management is locked to the calling application, and a different application attempting to update the Nightly Rate Map will receive an explicit error.]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Document the application lock behavior when setting <code>nightly_rates_managed_externally</code> to <code>true</code> on a <a href="https://developers.bookingsync.com/reference/endpoints/rentals">Rental</a>: rates management is locked to the calling application, and a different application attempting to update the <a href="https://developers.bookingsync.com/reference/endpoints/nightly_rate_maps">Nightly Rate Map</a> will receive an explicit error.</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.4.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/03/27/version-4-4-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/03/27/version-4-4-0</guid>
            <pubDate>Fri, 27 Mar 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Add new Booking Revenue Distributions endpoint (experimental).]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Add new <a href="https://developers.bookingsync.com/reference/endpoints/booking_revenue_distributions">Booking Revenue Distributions</a> endpoint (experimental).</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.3.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2026/03/12/version-4-3-0</link>
            <guid>https://developers.bookingsync.com/changelog/2026/03/12/version-4-3-0</guid>
            <pubDate>Thu, 12 Mar 2026 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Add classified_kind attribute to Bookings Fees and Bookings Taxes endpoints.]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Add <code>classified_kind</code> attribute to Bookings Fees and Bookings Taxes endpoints.</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.2.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2025/12/10/version-4-2-0</link>
            <guid>https://developers.bookingsync.com/changelog/2025/12/10/version-4-2-0</guid>
            <pubDate>Wed, 10 Dec 2025 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Add support for selectable adding/removing or bookings tags on a booking level..]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Add support for selectable adding/removing or bookings tags on a booking level..</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.1.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2025/12/05/version-4-1-0</link>
            <guid>https://developers.bookingsync.com/changelog/2025/12/05/version-4-1-0</guid>
            <pubDate>Fri, 05 Dec 2025 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Add support for task management.]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Add support for task management.</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 4.0.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2025/04/16/version-4-0-0</link>
            <guid>https://developers.bookingsync.com/changelog/2025/04/16/version-4-0-0</guid>
            <pubDate>Wed, 16 Apr 2025 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ New website layout and changelog created]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ New website layout and changelog created</li>
</ul>]]></content:encoded>
            <category>Features</category>
        </item>
        <item>
            <title><![CDATA[Version 3.32.0]]></title>
            <link>https://developers.bookingsync.com/changelog/2023/08/16/version-3-32-0</link>
            <guid>https://developers.bookingsync.com/changelog/2023/08/16/version-3-32-0</guid>
            <pubDate>Wed, 16 Aug 2023 00:00:00 GMT</pubDate>
            <description><![CDATA[- ✨ Add mapwithprice_variation attribute to Mid Terms Rate Map]]></description>
            <content:encoded><![CDATA[<ul>
<li>✨ Add map_with_price_variation attribute to Mid Terms Rate Map</li>
<li>📚 Update content/index.html to point to new channel-api docs</li>
</ul>]]></content:encoded>
            <category>Features</category>
            <category>Documentation</category>
        </item>
        <item>
            <title><![CDATA[Version 3.31.4]]></title>
            <link>https://developers.bookingsync.com/changelog/2023/06/22/version-3-31-4</link>
            <guid>https://developers.bookingsync.com/changelog/2023/06/22/version-3-31-4</guid>
            <pubDate>Thu, 22 Jun 2023 00:00:00 GMT</pubDate>
            <description><![CDATA[- 🛠 Add damage-deposit-related fields]]></description>
            <content:encoded><![CDATA[<ul>
<li>🛠 Add damage-deposit-related fields</li>
</ul>]]></content:encoded>
            <category>Improvements</category>
        </item>
        <item>
            <title><![CDATA[Version 3.29.4]]></title>
            <link>https://developers.bookingsync.com/changelog/2023/03/15/version-3-29-4</link>
            <guid>https://developers.bookingsync.com/changelog/2023/03/15/version-3-29-4</guid>
            <pubDate>Wed, 15 Mar 2023 00:00:00 GMT</pubDate>
            <description><![CDATA[- 🛠 Followup: Add parameters descriptions and enum options]]></description>
            <content:encoded><![CDATA[<ul>
<li>🛠 Followup: Add parameters descriptions and enum options</li>
<li>📚 Add documentation for api/v3/me</li>
</ul>]]></content:encoded>
            <category>Improvements</category>
            <category>Documentation</category>
        </item>
        <item>
            <title><![CDATA[Version 3.28.4]]></title>
            <link>https://developers.bookingsync.com/changelog/2023/03/09/version-3-28-4</link>
            <guid>https://developers.bookingsync.com/changelog/2023/03/09/version-3-28-4</guid>
            <pubDate>Thu, 09 Mar 2023 00:00:00 GMT</pubDate>
            <description><![CDATA[- 📚 Add note about obsolete amenities]]></description>
            <content:encoded><![CDATA[<ul>
<li>📚 Add note about obsolete amenities</li>
<li>📚 Add Inbox Integration guide</li>
<li>🐛 Fix schema descriptions on write operations for Nested-hash translated attributes documentation errors</li>
</ul>]]></content:encoded>
            <category>Documentation</category>
            <category>Bug Fixes</category>
        </item>
        <item>
            <title><![CDATA[Version 3.27.3]]></title>
            <link>https://developers.bookingsync.com/changelog/2023/02/01/version-3-27-3</link>
            <guid>https://developers.bookingsync.com/changelog/2023/02/01/version-3-27-3</guid>
            <pubDate>Wed, 01 Feb 2023 00:00:00 GMT</pubDate>
            <description><![CDATA[- 🛠 Update dependencies selectively for arm64 support]]></description>
            <content:encoded><![CDATA[<ul>
<li>🛠 Update dependencies selectively for arm64 support</li>
<li>🐛 Fix nested-hash translated attributes documentation mistakes</li>
</ul>]]></content:encoded>
            <category>Improvements</category>
            <category>Bug Fixes</category>
        </item>
        <item>
            <title><![CDATA[Version 3.27.4]]></title>
            <link>https://developers.bookingsync.com/changelog/2023/02/01/version-3-27-4</link>
            <guid>https://developers.bookingsync.com/changelog/2023/02/01/version-3-27-4</guid>
            <pubDate>Wed, 01 Feb 2023 00:00:00 GMT</pubDate>
            <description><![CDATA[Maintenance release.]]></description>
            <content:encoded><![CDATA[<p>Maintenance release.</p>]]></content:encoded>
            <category>Maintenance</category>
        </item>
        <item>
            <title><![CDATA[Version 3.27.2]]></title>
            <link>https://developers.bookingsync.com/changelog/2023/01/31/version-3-27-2</link>
            <guid>https://developers.bookingsync.com/changelog/2023/01/31/version-3-27-2</guid>
            <pubDate>Tue, 31 Jan 2023 00:00:00 GMT</pubDate>
            <description><![CDATA[- 🛠 Discount Codes docs]]></description>
            <content:encoded><![CDATA[<ul>
<li>🛠 Discount Codes docs</li>
<li>📚 add link to Channel API</li>
<li>🛠 [core-5497] Add pet fee</li>
</ul>
<ul>
<li>🛠 Bump nokogiri from 1.10.8 to 1.13.4</li>
<li>🛠 Bump addressable from 2.5.2 to 2.8.0</li>
<li>🛠 Bump kramdown from 1.3.2 to 2.3.0</li>
<li>🛠 Bump rack from 2.2.2 to 2.2.3</li>
</ul>]]></content:encoded>
            <category>Improvements</category>
            <category>Documentation</category>
        </item>
        <item>
            <title><![CDATA[Version 3.26.2]]></title>
            <link>https://developers.bookingsync.com/changelog/2022/03/23/version-3-26-2</link>
            <guid>https://developers.bookingsync.com/changelog/2022/03/23/version-3-26-2</guid>
            <pubDate>Wed, 23 Mar 2022 00:00:00 GMT</pubDate>
            <description><![CDATA[- 📚 Document constraints batch 7]]></description>
            <content:encoded><![CDATA[<ul>
<li>📚 Document constraints batch 7</li>
<li>📚 Document constraints batch 6</li>
<li>📚 Document constraints batch 5</li>
</ul>
<ul>
<li>📚 Document constraints batch 4</li>
<li>📚 Document constraints batch 3</li>
<li>🛠 [BASE BRANCH CHANGED] Document constraints batch 2</li>
<li>📚 document constraints / update docs / overview - batch 1</li>
</ul>]]></content:encoded>
            <category>Documentation</category>
            <category>Improvements</category>
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