diff --git a/CHANGELOG.md b/CHANGELOG.md
index 355cdf0..5ea5ab2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
-## [Unreleased]
+## [1.7.0] - 2026-05-21
 
 ### Added
 
diff --git a/SECURITY.md b/SECURITY.md
index aa2e583..8301399 100644
--- a/SECURITY.md
+++ b/SECURITY.md
@@ -6,8 +6,9 @@ We release patches for security vulnerabilities for the following versions:
 
 | Version | Supported          |
 | ------- | ------------------ |
-| 1.5.x   | :white_check_mark: |
-| < 1.5   | :x:                |
+| 1.7.x   | :white_check_mark: |
+| 1.6.x   | :white_check_mark: |
+| < 1.6   | :x:                |
 
 Older releases may receive a fix at maintainers' discretion when the issue is severe and an upgrade is not feasible. The latest 1.x release is always the recommended target.
 
diff --git a/pyproject.toml b/pyproject.toml
index 55ba374..865905a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "hyperping"
-version = "1.6.0"
+version = "1.7.0"
 description = "Python SDK for the Hyperping uptime monitoring and incident management API"
 readme = {file = "README.md", content-type = "text/markdown"}
 license = {text = "MIT"}
@@ -51,7 +51,7 @@ Issues        = "https://github.com/develeap/hyperping-python/issues"
 packages = ["src/hyperping"]
 
 [tool.hatch.build.targets.sdist]
-exclude = [".claude/", ".github/", "dist/", "uv.lock", "BACKLOG.md"]
+exclude = [".claude/", ".github/", ".worktrees/", "dist/", "docs/plans/", "uv.lock", "BACKLOG.md"]
 
 [tool.pytest.ini_options]
 testpaths = ["tests"]
diff --git a/src/hyperping/_version.py b/src/hyperping/_version.py
index e4adfb8..14d9d2f 100644
--- a/src/hyperping/_version.py
+++ b/src/hyperping/_version.py
@@ -1 +1 @@
-__version__ = "1.6.0"
+__version__ = "1.7.0"
diff --git a/tests/unit/test_mcp_client.py b/tests/unit/test_mcp_client.py
index 3de9c9d..f36e14b 100644
--- a/tests/unit/test_mcp_client.py
+++ b/tests/unit/test_mcp_client.py
@@ -321,20 +321,27 @@ def test_readme_contains_mcp_rate_limits_section():
     )
 
 
-def test_changelog_contains_unreleased_entry():
-    """CHANGELOG must contain an [Unreleased] block with Added and Fixed."""
+def test_changelog_top_section_documents_mcp_rate_limit_work():
+    """CHANGELOG's most recent section (either [Unreleased] or a released
+    version) must document the MCP rate-limit work shipped in this change.
+    """
     import re
 
     changelog = (_repo_root() / "CHANGELOG.md").read_text(encoding="utf-8")
-    assert re.search(r"^## \[Unreleased\]\s*$", changelog, re.MULTILINE), (
-        "CHANGELOG is missing an '## [Unreleased]' top-level heading"
-    )
-    # Slice the Unreleased section: from its heading up to the next ## release.
+    # Match the first ## heading (Unreleased or a released version) and slice
+    # up to the next ## heading.
     match = re.search(
-        r"^## \[Unreleased\]\s*\n(.*?)(?=^## \[)",
+        r"^## \[(?:Unreleased|\d+\.\d+\.\d+)\][^\n]*\n(.*?)(?=^## \[)",
         changelog,
         re.MULTILINE | re.DOTALL,
     )
-    section = match.group(1) if match else changelog.split("## [Unreleased]", 1)[-1]
-    assert "### Added" in section, "Unreleased section is missing '### Added'"
-    assert "### Fixed" in section, "Unreleased section is missing '### Fixed'"
+    assert match, "CHANGELOG is missing a top '## [Unreleased]' or '## [X.Y.Z]' heading"
+    section = match.group(1)
+    assert "### Added" in section, "Top CHANGELOG section is missing '### Added'"
+    assert "### Fixed" in section, "Top CHANGELOG section is missing '### Fixed'"
+    assert "ensure_initialized" in section, (
+        "Top CHANGELOG section must mention ensure_initialized()"
+    )
+    assert "rate limit" in section.lower(), (
+        "Top CHANGELOG section must mention rate-limit handling"
+    )
diff --git a/uv.lock b/uv.lock
index 1ec0883..955afdc 100644
--- a/uv.lock
+++ b/uv.lock
@@ -335,7 +335,7 @@ wheels = [
 
 [[package]]
 name = "hyperping"
-version = "1.6.0"
+version = "1.7.0"
 source = { editable = "." }
 dependencies = [
     { name = "httpx" },