diff --git a/etc/client-simulation.txt b/etc/client-simulation.txt
index 4b8b278..53f03e6 100644
--- a/etc/client-simulation.txt
+++ b/etc/client-simulation.txt
@@ -2801,6 +2801,28 @@ names+=("Opera 66 (Win 10)")
      requiresSha2+=(false)
      current+=(true)
 
+     names+=("LibreSSL 2.8.3 (Apple)")
+     short+=("libressl_283")
+     ch_ciphers+=("ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:GOST2012256-GOST89-GOST89:DHE-RSA-CAMELLIA256-SHA256:DHE-RSA-CAMELLIA256-SHA:GOST2001-GOST89-GOST89:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:CAMELLIA256-SHA256:CAMELLIA256-SHA:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:CAMELLIA128-SHA256:CAMELLIA128-SHA:ECDHE-RSA-RC4-SHA:ECDHE-ECDSA-RC4-SHA:RC4-SHA:RC4-MD5:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:DES-CBC3-SHA")
+     ciphersuites+=("")
+     ch_sni+=("$SNI")
+     warning+=("")
+     handshakebytes+=("16030100d2010000ce0303b92919aa3a64d5be518c116c52fc2fd6aab43535432e0702668527957473b6b400005ccca9cca8ccaac030c02cc028c024c014c00a009f006b0039ff8500c400880081009d003d003500c00084c02fc02bc027c023c013c009009e0067003300be0045009c003c002f00ba0041c011c00700050004c012c0080016000a00ff010000490000000f000d00000a7465737473736c2e7368000b00020100000a00080006001d0017001800230000000d001c001a06010603efef0501050304010403eeeeeded0301030302010203")
+     protos+=("-no_ssl2 -no_ssl3")
+     tlsvers+=("-tls1_2 -tls1_1 -tls1")
+     lowest_protocol+=("0x0301")
+     highest_protocol+=("0x0303")
+     alpn+=("h2,http/1.1")
+     service+=("ANY")
+     minDhBits+=(-1)
+     maxDhBits+=(-1)
+     minRsaBits+=(-1)
+     maxRsaBits+=(-1)
+     minEcdsaBits+=(-1)
+     curves+=("X25519:secp256r1:secp384r1")
+     requiresSha2+=(false)
+     current+=(true)
+
      names+=("OpenSSL 0.9.8y")
      short+=("openssl_098y")
      ch_ciphers+=("DHE-RSA-AES256-SHA:DHE-DSS-AES256-SHA:AES256-SHA:EDH-RSA-DES-CBC3-SHA:EDH-DSS-DES-CBC3-SHA:DES-CBC3-SHA:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA:AES128-SHA:IDEA-CBC-SHA:RC4-SHA:RC4-MD5:EDH-RSA-DES-CBC-SHA:EDH-DSS-DES-CBC-SHA:DES-CBC-SHA:EXP-EDH-RSA-DES-CBC-SHA:EXP-EDH-DSS-DES-CBC-SHA:EXP-DES-CBC-SHA:EXP-RC2-CBC-MD5:EXP-RC4-MD5")
diff --git a/etc/client-simulation.wiresharked.txt b/etc/client-simulation.wiresharked.txt
index 2bb798a..12dc1b7 100644
--- a/etc/client-simulation.wiresharked.txt
+++ b/etc/client-simulation.wiresharked.txt
@@ -508,6 +508,28 @@
      requiresSha2+=(false)
      current+=(true)
 
+     names+=("LibreSSL 2.8.3 (Apple)")
+     short+=("libressl_283")
+     ch_ciphers+=("ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:GOST2012256-GOST89-GOST89:DHE-RSA-CAMELLIA256-SHA256:DHE-RSA-CAMELLIA256-SHA:GOST2001-GOST89-GOST89:AES256-GCM-SHA384:AES256-SHA256:AES256-SHA:CAMELLIA256-SHA256:CAMELLIA256-SHA:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-CAMELLIA128-SHA256:DHE-RSA-CAMELLIA128-SHA:AES128-GCM-SHA256:AES128-SHA256:AES128-SHA:CAMELLIA128-SHA256:CAMELLIA128-SHA:ECDHE-RSA-RC4-SHA:ECDHE-ECDSA-RC4-SHA:RC4-SHA:RC4-MD5:ECDHE-RSA-DES-CBC3-SHA:ECDHE-ECDSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:DES-CBC3-SHA")
+     ciphersuites+=("")
+     ch_sni+=("$SNI")
+     warning+=("")
+     handshakebytes+=("16030100d2010000ce0303b92919aa3a64d5be518c116c52fc2fd6aab43535432e0702668527957473b6b400005ccca9cca8ccaac030c02cc028c024c014c00a009f006b0039ff8500c400880081009d003d003500c00084c02fc02bc027c023c013c009009e0067003300be0045009c003c002f00ba0041c011c00700050004c012c0080016000a00ff010000490000000f000d00000a7465737473736c2e7368000b00020100000a00080006001d0017001800230000000d001c001a06010603efef0501050304010403eeeeeded0301030302010203")
+     protos+=("-no_ssl2 -no_ssl3")
+     tlsvers+=("-tls1_2 -tls1_1 -tls1")
+     lowest_protocol+=("0x0301")
+     highest_protocol+=("0x0303")
+     alpn+=("h2,http/1.1")
+     service+=("ANY")
+     minDhBits+=(-1)
+     maxDhBits+=(-1)
+     minRsaBits+=(-1)
+     maxRsaBits+=(-1)
+     minEcdsaBits+=(-1)
+     curves+=("X25519:secp256r1:secp384r1")
+     requiresSha2+=(false)
+     current+=(true)
+
      names+=("OpenSSL 1.1.0j (Debian)")
      short+=("openssl_110j")
      ch_ciphers+=("ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:DHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:DHE-RSA-AES256-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES256-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES128-SHA:DHE-RSA-AES128-SHA:AES256-GCM-SHA384:AES128-GCM-SHA256:AES256-SHA256:AES128-SHA256:AES256-SHA:AES128-SHA")
diff --git a/t/baseline_data/default_testssl.csvfile b/t/baseline_data/default_testssl.csvfile
index 62bbbb3..dbb3ba0 100644
--- a/t/baseline_data/default_testssl.csvfile
+++ b/t/baseline_data/default_testssl.csvfile
@@ -66,7 +66,7 @@
 "DH_groups","testssl.sh/81.169.166.184","443","OK","Unknown DH group (2048 bits)","",""
 "HTTP_status_code","testssl.sh/81.169.166.184","443","INFO","200 OK ('/')","",""
 "HTTP_clock_skew","testssl.sh/81.169.166.184","443","INFO","0 seconds from localtime","",""
-"HTTP_headerTime","testssl.sh/81.169.166.184","443","INFO","1654002656","",""
+"HTTP_headerTime","testssl.sh/81.169.166.184","443","INFO","1654006271","",""
 "HSTS_time","testssl.sh/81.169.166.184","443","OK","362 days (=31337000 seconds) > 15552000 seconds","",""
 "HSTS_subdomains","testssl.sh/81.169.166.184","443","INFO","only for this domain","",""
 "HSTS_preload","testssl.sh/81.169.166.184","443","INFO","domain is NOT marked for preloading","",""
@@ -127,6 +127,7 @@
 "clientsimulation-java1102","testssl.sh/81.169.166.184","443","INFO","TLSv1.3 TLS_AES_256_GCM_SHA384","",""
 "clientsimulation-java1703","testssl.sh/81.169.166.184","443","INFO","TLSv1.3 TLS_AES_256_GCM_SHA384","",""
 "clientsimulation-go_1178","testssl.sh/81.169.166.184","443","INFO","TLSv1.3 TLS_AES_256_GCM_SHA384","",""
+"clientsimulation-libressl_283","testssl.sh/81.169.166.184","443","INFO","TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384","",""
 "clientsimulation-openssl_102e","testssl.sh/81.169.166.184","443","INFO","TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384","",""
 "clientsimulation-openssl_110l","testssl.sh/81.169.166.184","443","INFO","TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384","",""
 "clientsimulation-openssl_111d","testssl.sh/81.169.166.184","443","INFO","TLSv1.3 TLS_AES_256_GCM_SHA384","",""