diff --git a/dev-cpp/drogon/Manifest b/dev-cpp/drogon/Manifest
index 28696d399d..7029e49a97 100644
--- a/dev-cpp/drogon/Manifest
+++ b/dev-cpp/drogon/Manifest
@@ -1,4 +1,4 @@
-DIST drogon-1.8.7.tar.gz 561601 BLAKE2B 9cca0fac0d34942a382371c1b654170456e3f7a2a565a798f19854dd0291ef0cf1ef19d668e36794a050a9acccd83c4aab5a0351f0b3f2a87753bc270793146c SHA512 a49b032689869e97505612570285d21c0a68604c70e379f95c70fd5d8014f6890809283956b1b83fda4551c01c526ab2b575351c23a3e58fb4f920c9e1b7e92b
 DIST drogon-1.9.0.tar.gz 566471 BLAKE2B ce7b64748e8b8022527cdeeb4ad8f52e6179a3c6d80576eddd560bffac947fb7a8c4054410f455102fd07f4ff00a515edbcf6af0cb0af342f06fba7ee2c5a236 SHA512 2732bea50e913bb13b251c03da62e2935dcb8c2e48dcc85286bfe1bf1ecdefb4bfd712d1c6cf00daab15705be1c3b6851a4ee8b5a0c7b7d2341baa2d9500d8a5
-DIST trantor-1.5.13.tar.gz 143230 BLAKE2B 298870f3b132d4dbacbab88b9689fd2e8fec7450dcca82fc985393b718a701008debea7a50f2d7814871a9399bb423f21b9a9454de59468f7bfade51b70a283d SHA512 4f4cef4103faa323e5213c1b59c0d86606831e97127594d5c9248481ba4ce66905c40c25c5d83d00e78936d53ba03b8450e6848199a85e9120bb8f2522bf7805
+DIST drogon-1.9.1.tar.gz 567917 BLAKE2B 2da1c1a433c19388eb6ed9a474369309b02d9200ae275c513923bcef19d2e5a8955c9361467f581ad1b2b65b0d183214b728a2c4280b8ca2f1a36091d5a4e2e7 SHA512 05666166e0b03a6f349a3811ea1014f6e7d8a42a5e749e478502461722a647c6170f5538a4cba9820c3135551d577276094cd96eb0997946c3a37787b531ac49
 DIST trantor-1.5.14.tar.gz 143236 BLAKE2B 843c67a3a4dedc8e476115438eae9a0ec99a6739fb5f29c79780c38d8d82dfe4b5add42d3c0c589c0be35662f7d24a89dfe037ac422fe8d53f00975b2a646f84 SHA512 468e5ffe9b47537992b9852ddec7714fb6e63147ff51ecfade7e1b0af02f5231ebc50b71d48d77c188f8d2af77c64c40fcbdc907f4f8d45d488aa2966f9406f9
+DIST trantor-1.5.15.tar.gz 153133 BLAKE2B a69e46072269a8664d33d3b3b6575de07c645151a97f60bfe350d52972cf2b48c062a342c7b2ca57566fa213cc56b585b2fdf34b6d0a5f9c533d1c3f6bab2ba6 SHA512 f08bba448229d8121534cade55b74ac0d9cf5deb1c1116794c21fee37f8f8c3b3d5e6618d0806942a9bcf5eb30c87879ddaf1104417fb3fe14de0827670e03e8
diff --git a/dev-cpp/drogon/drogon-1.8.7.ebuild b/dev-cpp/drogon/drogon-1.9.1.ebuild
similarity index 87%
rename from dev-cpp/drogon/drogon-1.8.7.ebuild
rename to dev-cpp/drogon/drogon-1.9.1.ebuild
index 42c21024a5..6137a218b9 100644
--- a/dev-cpp/drogon/drogon-1.8.7.ebuild
+++ b/dev-cpp/drogon/drogon-1.9.1.ebuild
@@ -1,17 +1,17 @@
-# Copyright 2021-2023 Gentoo Authors
+# Copyright 2021-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
 inherit cmake
 
-MY_TRANTOR_V="1.5.13"
+MY_TRANTOR_V="1.5.15" # NOTE: needs to be updated on each bump
 
 DESCRIPTION="C++14/17 based HTTP web application framework"
 HOMEPAGE="https://github.com/drogonframework/drogon"
 SRC_URI="
-	https://github.com/drogonframework/drogon/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz
-	test? ( https://github.com/an-tao/trantor/archive/refs/tags/v${MY_TRANTOR_V}.tar.gz -> trantor-${MY_TRANTOR_V}.tar.gz )
+	https://github.com/drogonframework/drogon/archive/v${PV}.tar.gz -> ${P}.tar.gz
+	test? ( https://github.com/an-tao/trantor/archive/v${MY_TRANTOR_V}.tar.gz -> trantor-${MY_TRANTOR_V}.tar.gz )
 "
 
 LICENSE="MIT"
diff --git a/dev-cpp/trantor/Manifest b/dev-cpp/trantor/Manifest
index a8b84df545..39004f492b 100644
--- a/dev-cpp/trantor/Manifest
+++ b/dev-cpp/trantor/Manifest
@@ -1,2 +1,2 @@
-DIST trantor-1.5.14.tar.gz 143236 BLAKE2B 843c67a3a4dedc8e476115438eae9a0ec99a6739fb5f29c79780c38d8d82dfe4b5add42d3c0c589c0be35662f7d24a89dfe037ac422fe8d53f00975b2a646f84 SHA512 468e5ffe9b47537992b9852ddec7714fb6e63147ff51ecfade7e1b0af02f5231ebc50b71d48d77c188f8d2af77c64c40fcbdc907f4f8d45d488aa2966f9406f9
 DIST trantor-1.5.14_p1.tar.gz 152566 BLAKE2B 09ea5e1d35d653073947e177a9630c93b235e84cdc66a69d4a944f656e957afe31206d7b6079b68f7517bfcd9619aa98e7e4bcc32c7873b01e7cfd94e0ea5704 SHA512 0725b66351a036f829499edb19be31f434ebea7133b129d994f3cb1a5e8c08844c181eab383b074bbcc8bf8efe7d761d12c593180d8ac07edf6dd8bde580578c
+DIST trantor-1.5.15.tar.gz 153133 BLAKE2B a69e46072269a8664d33d3b3b6575de07c645151a97f60bfe350d52972cf2b48c062a342c7b2ca57566fa213cc56b585b2fdf34b6d0a5f9c533d1c3f6bab2ba6 SHA512 f08bba448229d8121534cade55b74ac0d9cf5deb1c1116794c21fee37f8f8c3b3d5e6618d0806942a9bcf5eb30c87879ddaf1104417fb3fe14de0827670e03e8
diff --git a/dev-cpp/trantor/trantor-1.5.14.ebuild b/dev-cpp/trantor/trantor-1.5.15.ebuild
similarity index 78%
rename from dev-cpp/trantor/trantor-1.5.14.ebuild
rename to dev-cpp/trantor/trantor-1.5.15.ebuild
index 66f441cfb6..4a18bcd7bd 100644
--- a/dev-cpp/trantor/trantor-1.5.14.ebuild
+++ b/dev-cpp/trantor/trantor-1.5.15.ebuild
@@ -1,4 +1,4 @@
-# Copyright 2021-2023 Gentoo Authors
+# Copyright 2021-2024 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
@@ -7,17 +7,21 @@ inherit cmake
 
 DESCRIPTION="Non-blocking I/O tcp network lib based on c++14/17"
 HOMEPAGE="https://github.com/an-tao/trantor"
-SRC_URI="https://github.com/an-tao/trantor/archive/refs/tags/v${PV}.tar.gz -> ${P}.tar.gz"
+SRC_URI="https://github.com/an-tao/trantor/archive/v${PV}.tar.gz -> ${P}.tar.gz"
 
 LICENSE="BSD"
 SLOT="0/${PV}"
 KEYWORDS="~amd64"
-IUSE="adns doc +ssl test"
+IUSE="adns doc +spdlog +ssl test"
 RESTRICT="!test? ( test )"
 
 RDEPEND="
 	adns? ( net-dns/c-ares:= )
 	ssl? ( dev-libs/openssl:= )
+	spdlog? (
+		dev-libs/spdlog:=
+		dev-libs/libfmt:=
+	)
 "
 DEPEND="
 	${RDEPEND}
@@ -37,6 +41,7 @@ src_configure() {
 		"-DBUILD_TESTING=$(usex test)"
 		"-DBUILD_C-ARES=$(usex adns)"
 		"-DTRANTOR_USE_TLS=$(usex ssl openssl none)"
+		"-DUSE_SPDLOG=$(usex spdlog)"
 	)
 
 	cmake_src_configure
diff --git a/sys-fs/ntfs2btrfs/Manifest b/sys-fs/ntfs2btrfs/Manifest
index 0313c405bb..124d1acf56 100644
--- a/sys-fs/ntfs2btrfs/Manifest
+++ b/sys-fs/ntfs2btrfs/Manifest
@@ -1 +1 @@
-DIST ntfs2btrfs-20230501.tar.gz 98816 BLAKE2B d814e1d1a80fa25a85ca010b4ec3d0a92eb0ebeba4ad9042af95b7f2cd5fb70941e2dfc4422a609b7b159c9f4ff51598e1acaedb46f3b48fb42235f230dc1423 SHA512 ad10850280f591cbdc169bb8e0b1768f7c4051b3110283c941ab76beb0d2b728d30ac64caecdbe6f90068b2486170ddced0704d741d1469944c58ecf0b168e0a
+DIST ntfs2btrfs-20240115.tar.gz 98851 BLAKE2B 99f6a10a785286a093d995efb34fd822d35a28f6232c2dd003c16f30a98dd1a63dd46c7e4ea9e373bf18f453eb6d867c4a73492c0edc54bf1dc3a50c847c239a SHA512 c614e33b83a4dad25b07335f42161223804935bbee19a72a6576fe361a7edf91502773facc14c767e02abff03fd26d902ab2cd0d8f8bcde8ba10c56869d01873
diff --git a/sys-fs/ntfs2btrfs/ntfs2btrfs-20230501.ebuild b/sys-fs/ntfs2btrfs/ntfs2btrfs-20240115.ebuild
similarity index 98%
rename from sys-fs/ntfs2btrfs/ntfs2btrfs-20230501.ebuild
rename to sys-fs/ntfs2btrfs/ntfs2btrfs-20240115.ebuild
index f2b3e08fbb..1d6ac5d74b 100644
--- a/sys-fs/ntfs2btrfs/ntfs2btrfs-20230501.ebuild
+++ b/sys-fs/ntfs2btrfs/ntfs2btrfs-20240115.ebuild
@@ -25,7 +25,6 @@ DEPEND="dev-libs/libfmt
 	lzo? ( dev-libs/lzo )
 	zstd? ( app-arch/zstd )"
 RDEPEND="${DEPEND}"
-BDEPEND=""
 
 src_prepare() {
 	cmake_src_prepare