From 7614916acaef3a0838d50f3e0a179eb94aa2ce44 Mon Sep 17 00:00:00 2001
From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com>
Date: Thu, 11 Dec 2025 02:45:55 +0000
Subject: [PATCH] Update Emacs version requirement to 28.1+ for
 object-intervals support

Co-authored-by: Kinneyzhang <38454496+Kinneyzhang@users.noreply.github.com>
---
 readme.md |  4 +++-
 tp.el     | 11 ++++++++---
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/readme.md b/readme.md
index 65dd48f..7e4fdab 100644
--- a/readme.md
+++ b/readme.md
@@ -18,7 +18,9 @@ Inspired by [ov.el](https://github.com/emacsorphanage/ov) for overlays.
 (require 'tp)
 ```
 
-Dependencies: `dash` (for list manipulation utilities)
+**Requirements:**
+- Emacs 28.1+ (uses `object-intervals` function)
+- `dash` (for list manipulation utilities)
 
 ## Quick Start
 
diff --git a/tp.el b/tp.el
index a21d96a..a111ef1 100644
--- a/tp.el
+++ b/tp.el
@@ -4,7 +4,7 @@
 
 ;; Version: 0.1.0
 ;; Keywords: convenience text-properties
-;; Package-Requires: ((emacs "27.1") (dash "2.19.1"))
+;; Package-Requires: ((emacs "28.1") (dash "2.19.1"))
 
 ;; This program is free software; you can redistribute it and/or
 ;; modify it under the terms of the GNU General Public License as
@@ -24,6 +24,8 @@
 ;; - Search and navigation functions for text properties
 ;;
 ;; Inspired by https://github.com/emacsorphanage/ov
+;;
+;; Requires Emacs 28.1+ for `object-intervals' function.
 
 ;;; Code:
 
@@ -153,11 +155,13 @@ Returns a plist of all properties in the region."
     props))
 
 ;;; Text property intervals
+;; Note: Uses `object-intervals' which requires Emacs 28.1+
 
 (defun tp-intervals (start end &optional object)
   "Get all text property intervals from START to END in OBJECT.
 OBJECT can be a buffer or string; nil defaults to current buffer.
-Returns a list of (START END PROPERTIES) for each interval."
+Returns a list of (START END PROPERTIES) for each interval.
+Uses `object-intervals' (Emacs 28.1+)."
   (let ((object (or object (current-buffer))))
     (cond
      ((stringp object)
@@ -169,7 +173,8 @@ Returns a list of (START END PROPERTIES) for each interval."
                (type-of object))))))
 
 (defun tp-empty-p (object)
-  "Return t if OBJECT has no text properties."
+  "Return t if OBJECT has no text properties.
+Uses `object-intervals' (Emacs 28.1+)."
   (null (object-intervals object)))
 
 (defun tp-intervals-map (function start end &optional object)