diff --git a/cm-0.4.2.tar.gz b/cm-0.4.2.tar.gz
deleted file mode 100644
index fddabf3..0000000
--- a/cm-0.4.2.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:7c61a3a03759c875f4e0882603b7a6f3b7915b0688194c812b3a0f1e3900d5b0
-size 749482
diff --git a/cm-0.4.2.tar.gz.asc b/cm-0.4.2.tar.gz.asc
deleted file mode 100644
index db17e2c..0000000
--- a/cm-0.4.2.tar.gz.asc
+++ /dev/null
@@ -1,7 +0,0 @@
------BEGIN PGP SIGNATURE-----
-
-iHUEABEIAB0WIQStF6Ie+K7Y8cwC29n31cm/dlxh4wUCZGUPugAKCRD31cm/dlxh
-4+F5AQCbb+17Hd8yXR6sZCwS/Y5riuo6nevu3XtUKS3CtRwnqgD/SoRTu8gV1Wpb
-V6SmQAR/nd2AD2rWoXT8nJ3U8+C5P+c=
-=DFYv
------END PGP SIGNATURE-----
diff --git a/cm-0.4.3.tar.gz b/cm-0.4.3.tar.gz
new file mode 100644
index 0000000..7d1e836
--- /dev/null
+++ b/cm-0.4.3.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:b23035bd94bea07d9ab912116522edb3db449f25f3361fe5bd4a35402150b005
+size 762008
diff --git a/cm-0.4.3.tar.gz.asc b/cm-0.4.3.tar.gz.asc
new file mode 100644
index 0000000..e5f3c00
--- /dev/null
+++ b/cm-0.4.3.tar.gz.asc
@@ -0,0 +1,7 @@
+-----BEGIN PGP SIGNATURE-----
+
+iHUEABEIAB0WIQStF6Ie+K7Y8cwC29n31cm/dlxh4wUCZdxqygAKCRD31cm/dlxh
+4zItAQCDcd1rUmSJOQR0kiwoYTZKyH0fF2jEa2ziHWD3WkwjTAD9H0wZnzGzLh0M
+SkkWu7NW1HNf7V7aCNjv1RygaV8YUjM=
+=vsNm
+-----END PGP SIGNATURE-----
diff --git a/cm.changes b/cm.changes
index 176c0b8..9ba1c02 100644
--- a/cm.changes
+++ b/cm.changes
@@ -1,3 +1,14 @@
+-------------------------------------------------------------------
+Thu Apr 11 17:59:40 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 0.4.3
+  * FLINT3 support
+  * Add an upper bound on the permitted class number in ECPP, to
+    avoid choosing discriminants for which class polynomials
+    cannot be computed in reasonable time and with reasonable
+    memory.
+- Delete flint3.diff (obsolete)
+
 -------------------------------------------------------------------
 Sun Oct 22 04:06:43 UTC 2023 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/cm.spec b/cm.spec
index f952802..bcc25f1 100644
--- a/cm.spec
+++ b/cm.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package cm
 #
-# Copyright (c) 2023 SUSE LLC
+# Copyright (c) 2024 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -17,7 +17,7 @@
 
 
 Name:           cm
-Version:        0.4.2
+Version:        0.4.3
 Release:        0
 Summary:        Class polynomial computation via floating point approximations
 License:        GPL-3.0-or-later
@@ -27,7 +27,6 @@ URL:            https://www.multiprecision.org/cm/
 Source:         http://www.multiprecision.org/downloads/%name-%version.tar.gz
 Source2:        http://www.multiprecision.org/downloads/%name-%version.tar.gz.asc
 Source3:        %name.keyring
-Patch1:         flint3.diff
 BuildRequires:  flint-devel >= 3
 BuildRequires:  gmp-devel >= 4.3.2
 BuildRequires:  libtool
@@ -99,7 +98,7 @@ fi
 %files
 %_bindir/classpol
 %_bindir/cm
-%_bindir/ecpp
+%_bindir/ecpp*
 %_datadir/cm/
 %_infodir/cm.info*
 
diff --git a/flint3.diff b/flint3.diff
deleted file mode 100644
index 6feaa0f..0000000
--- a/flint3.diff
+++ /dev/null
@@ -1,57 +0,0 @@
-From: Jan Engelhardt <jengelh@inai.de>
-Date: 2023-10-22 06:05:56.005185292 +0200
-
-Copy functions from FLINT 2.9 [13042307357192c09630d276f0e7bf2abb9ffd39]
-which have been removed in FLINT 3.0.
----
- lib/flint.c |   23 +++++++++++++++++++++--
- 1 file changed, 21 insertions(+), 2 deletions(-)
-
-Index: cm-0.4.2/lib/flint.c
-===================================================================
---- cm-0.4.2.orig/lib/flint.c
-+++ cm-0.4.2/lib/flint.c
-@@ -30,6 +30,25 @@ Foundation, Inc., 59 Temple Place - Suit
- /*                                                                           */
- /*****************************************************************************/
- 
-+static void fmpz_mod_poly_get_coeff_mpz1(mpz_t x,
-+    const fmpz_mod_poly_t poly, slong n, const fmpz_mod_ctx_t ctx)
-+{
-+	fmpz_t t;
-+	fmpz_init(t);
-+	fmpz_mod_poly_get_coeff_fmpz(t, poly, n, ctx);
-+	fmpz_get_mpz(x, t);
-+	fmpz_clear(t);
-+}
-+
-+static void fmpz_mod_poly_set_coeff_mpz1(fmpz_mod_poly_t poly,
-+    slong n, const mpz_t x, const fmpz_mod_ctx_t ctx)
-+{
-+	fmpz_t t;
-+	fmpz_init_set_readonly(t, x);
-+	fmpz_mod_poly_set_coeff_fmpz(poly, n, t, ctx);
-+	fmpz_clear_readonly(t);
-+}
-+
- void mpzx_set_fmpz_mod_poly (mpzx_ptr f, fmpz_mod_poly_t ff,
-    const fmpz_mod_ctx_t ctx)
- {
-@@ -38,7 +57,7 @@ void mpzx_set_fmpz_mod_poly (mpzx_ptr f,
-    deg = fmpz_mod_poly_degree (ff, ctx);
-    mpzx_set_deg (f, deg);
-    for (i = 0; i <= deg; i++)
--      fmpz_mod_poly_get_coeff_mpz (f->coeff [i], ff, i, ctx);
-+      fmpz_mod_poly_get_coeff_mpz1(f->coeff [i], ff, i, ctx);
- }
- 
- /*****************************************************************************/
-@@ -51,7 +70,7 @@ void fmpz_mod_poly_set_mpzx (fmpz_mod_po
-    deg = f->deg;
-    fmpz_mod_poly_realloc (ff, deg + 1, ctx);
-    for (i = 0; i <= deg; i++)
--      fmpz_mod_poly_set_coeff_mpz (ff, i, f->coeff [i], ctx);
-+      fmpz_mod_poly_set_coeff_mpz1(ff, i, f->coeff [i], ctx);
- }
- 
- #endif