diff --git a/CHANGES b/CHANGES
index b67f85f563..8273757a2a 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,18 @@
+6.0.0-dev.57 | 2023-02-16 15:10:33 -0700
+
+  * Move get_relative_seq and get_segment_len to public static methods (Tim Wojtulewicz, Corelight)
+
+  * CI: remove no longer needed workaround for GITHUB_ACTION env var in cluster tests (Christian Kreibich, Corelight)
+
+    This got fixed in the testsuite via zeek/zeek-testing-cluster#24.
+
+  * CI: directly invoke btest in the cluster testsuite (Christian Kreibich, Corelight)
+
+    This resembles the way we also invoke it in ci/test.sh, and "-d"'s direct
+    console output saves a roundtrip through uploaded artifacts when tests fail.
+    This skips test retries for now -- not sure we really need it for this
+    testsuite.
+
 6.0.0-dev.52 | 2023-02-15 11:12:28 -0700
 
   * Fix linking of zeek_build_info on Windows (Tim Wojtulewicz)
diff --git a/VERSION b/VERSION
index 03dd50eed2..d0d3b41279 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-6.0.0-dev.55
+6.0.0-dev.57
diff --git a/src/packet_analysis/protocol/tcp/TCPSessionAdapter.cc b/src/packet_analysis/protocol/tcp/TCPSessionAdapter.cc
index 3aa3438c7f..f8f400ad3e 100644
--- a/src/packet_analysis/protocol/tcp/TCPSessionAdapter.cc
+++ b/src/packet_analysis/protocol/tcp/TCPSessionAdapter.cc
@@ -77,7 +77,7 @@ void TCPSessionAdapter::Done()
 	finished = 1;
 	}
 
-static int get_segment_len(int payload_len, analyzer::tcp::TCP_Flags flags)
+int TCPSessionAdapter::get_segment_len(int payload_len, analyzer::tcp::TCP_Flags flags)
 	{
 	int seg_len = payload_len;
 
@@ -175,8 +175,9 @@ static void init_endpoint(analyzer::tcp::TCP_Endpoint* endpoint, analyzer::tcp::
 		}
 	}
 
-static uint64_t get_relative_seq(const analyzer::tcp::TCP_Endpoint* endpoint, uint32_t cur_base,
-                                 uint32_t last, uint32_t wraps, bool* underflow)
+uint64_t TCPSessionAdapter::get_relative_seq(const analyzer::tcp::TCP_Endpoint* endpoint,
+                                             uint32_t cur_base, uint32_t last, uint32_t wraps,
+                                             bool* underflow)
 	{
 	int32_t delta = seq_delta(cur_base, last);
 
diff --git a/src/packet_analysis/protocol/tcp/TCPSessionAdapter.h b/src/packet_analysis/protocol/tcp/TCPSessionAdapter.h
index e79242869a..bec86f9979 100644
--- a/src/packet_analysis/protocol/tcp/TCPSessionAdapter.h
+++ b/src/packet_analysis/protocol/tcp/TCPSessionAdapter.h
@@ -78,6 +78,10 @@ public:
 
 	void AddExtraAnalyzers(Connection* conn) override;
 
+	static int get_segment_len(int payload_len, analyzer::tcp::TCP_Flags flags);
+	static uint64_t get_relative_seq(const analyzer::tcp::TCP_Endpoint* endpoint, uint32_t cur_base,
+	                                 uint32_t last, uint32_t wraps, bool* underflow);
+
 protected:
 	friend class analyzer::tcp::TCP_ApplicationAnalyzer;
 	friend class analyzer::tcp::TCP_Endpoint;