[css-anchor-position-1] Update Changes

Author: fantasai

css-anchor-position-1/Overview.bs

@@ -2659,6 +2659,8 @@ Significant changes since the <a href="https://www.w3.org/TR/2025/WD-css-anchor-
 * Clarify that ''flip-block'', ''flip-inline'', and ''flip-start'' use the [=writing mode=] of the [=containing block=].
 	(<a href="https://github.com/w3c/csswg-drafts/issues/12869">Issue 12869</a>,
 	 <a href="https://github.com/w3c/csswg-drafts/issues/13076">Issue 13076</a>)
+* Clarify that ''inset/auto'' 'inset' values are treated as zero when finding the [=inset-modified containing block size=] for comparing [=position options=] in 'position-try-order'.
+	(<a href="https://github.com/w3c/csswg-drafts/issues/12942">Issue 12942</a>)
 * Add 'clip-path' to the list of clipping effects considered for ''anchors-visible''
 	and clarify the timing of its checks.
 	(<a href="https://github.com/w3c/csswg-drafts/issues/12732">Issue 12732</a>)
@@ -2671,5 +2673,12 @@ Significant changes since the <a href="https://www.w3.org/TR/2025/WD-css-anchor-
 * Fix algorithm error requiring matching tree roots for anchor name matching,
 	since it is sometimes possible to match across shadow tree boundaries.
 	(<a href="https://github.com/w3c/csswg-drafts/issues/12941">Issue 12941</a>)
+* Clarify that ''inset/auto'' 'inset' values are treated as zero when finding the [=inset-modified containing block=] size for 'position-try-options'.
+	(<a href="https://github.com/w3c/csswg-drafts/issues/12942">Issue 12942</a>)
+* Reorganize prose in [[#fallback]] for better readability.
+	(<a href="https://github.com/w3c/csswg-drafts/issues/12811">Issue 12818</a>)
+* Improve guidance in [[#accessibility]] and clarify UA requirements.
+	(<a href="https://github.com/w3c/csswg-drafts/issues/10311">Issue 10311</a>)
+* Improve examples.
 
 See also <a href="https://www.w3.org/TR/2025/WD-css-anchor-position-1-20251007/#changes">Previous Changes</a>.