diff --git a/README b/README
index bf63f70..925fd8c 100644
--- a/README
+++ b/README
@@ -147,7 +147,6 @@
       LICENSE       =>  License to use and redistribute libpng
       README        =>  This file
       TODO          =>  Things not implemented in the current library
-      Y2KINFO       =>  Statement of Y2K compliance
       example.c     =>  Example code for using libpng functions
       libpng.3      =>  manual page for libpng (includes libpng-manual.txt)
       libpng-manual.txt  =>  Description of libpng and its functions
diff --git a/png.h b/png.h
index e6985a3..1e1b45e 100644
--- a/png.h
+++ b/png.h
@@ -243,63 +243,6 @@
  * <https://www.w3.org/TR/2003/REC-PNG-20031110/
  */
 
-/*
- * Y2K compliance in libpng:
- * =========================
- *
- *    July 15, 2018
- *
- *    Since the PNG Development group is an ad-hoc body, we can't make
- *    an official declaration.
- *
- *    This is your unofficial assurance that libpng from version 0.71 and
- *    upward through 1.6.35 are Y2K compliant.  It is my belief that
- *    earlier versions were also Y2K compliant.
- *
- *    Libpng only has two year fields.  One is a 2-byte unsigned integer
- *    that will hold years up to 65535.  The other, which is deprecated,
- *    holds the date in text format, and will hold years up to 9999.
- *
- *    The integer is
- *        "png_uint_16 year" in png_time_struct.
- *
- *    The string is
- *        "char time_buffer[29]" in png_struct.  This is no longer used
- *    in libpng-1.6.x and will be removed from libpng-1.7.0.
- *
- *    There are seven time-related functions:
- *        png.c: png_convert_to_rfc_1123_buffer() in png.c
- *          (formerly png_convert_to_rfc_1123() prior to libpng-1.5.x and
- *          png_convert_to_rfc_1152() in error prior to libpng-0.98)
- *        png_convert_from_struct_tm() in pngwrite.c, called in pngwrite.c
- *        png_convert_from_time_t() in pngwrite.c
- *        png_get_tIME() in pngget.c
- *        png_handle_tIME() in pngrutil.c, called in pngread.c
- *        png_set_tIME() in pngset.c
- *        png_write_tIME() in pngwutil.c, called in pngwrite.c
- *
- *    All handle dates properly in a Y2K environment.  The
- *    png_convert_from_time_t() function calls gmtime() to convert from system
- *    clock time, which returns (year - 1900), which we properly convert to
- *    the full 4-digit year.  There is a possibility that libpng applications
- *    are not passing 4-digit years into the png_convert_to_rfc_1123_buffer()
- *    function, or that they are incorrectly passing only a 2-digit year
- *    instead of "year - 1900" into the png_convert_from_struct_tm() function,
- *    but this is not under our control.  The libpng documentation has always
- *    stated that it works with 4-digit years, and the APIs have been
- *    documented as such.
- *
- *    The tIME chunk itself is also Y2K compliant.  It uses a 2-byte unsigned
- *    integer to hold the year, and can hold years as large as 65535.
- *
- *    zlib, upon which libpng depends, is also Y2K compliant.  It contains
- *    no date-related code.
- *
- *       Glenn Randers-Pehrson
- *       libpng maintainer
- *       PNG Development Group
- */
-
 #ifndef PNG_H
 #define PNG_H
 
diff --git a/scripts/makefile.32sunu b/scripts/makefile.32sunu
index 7d4b7c5..c849ecd 100644
--- a/scripts/makefile.32sunu
+++ b/scripts/makefile.32sunu
@@ -219,7 +219,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.64sunu b/scripts/makefile.64sunu
index 341fce9..8880fa9 100644
--- a/scripts/makefile.64sunu
+++ b/scripts/makefile.64sunu
@@ -219,7 +219,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.darwin b/scripts/makefile.darwin
index be3f92c..33c27cc 100644
--- a/scripts/makefile.darwin
+++ b/scripts/makefile.darwin
@@ -200,7 +200,7 @@
 	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
 	libpng.pc $(LIBNAME).*dylib pngtesti pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.freebsd b/scripts/makefile.freebsd
index cad1a5a..5fec61e 100644
--- a/scripts/makefile.freebsd
+++ b/scripts/makefile.freebsd
@@ -62,7 +62,7 @@
 pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
 	cp $(PNGLIBCONF_H_PREBUILT) $@
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.hp64 b/scripts/makefile.hp64
index 5948be8..cde0d15 100644
--- a/scripts/makefile.hp64
+++ b/scripts/makefile.hp64
@@ -206,7 +206,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.hpgcc b/scripts/makefile.hpgcc
index 5c8791b..efef1f3 100644
--- a/scripts/makefile.hpgcc
+++ b/scripts/makefile.hpgcc
@@ -209,7 +209,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.hpux b/scripts/makefile.hpux
index b07612d..4489757 100644
--- a/scripts/makefile.hpux
+++ b/scripts/makefile.hpux
@@ -204,7 +204,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.knr b/scripts/makefile.knr
index d8de064..307453f 100644
--- a/scripts/makefile.knr
+++ b/scripts/makefile.knr
@@ -91,7 +91,7 @@
 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png ansi2knr pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.linux b/scripts/makefile.linux
index 7b6f5a7..f4ed37f 100644
--- a/scripts/makefile.linux
+++ b/scripts/makefile.linux
@@ -222,7 +222,7 @@
 	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.linux-opt b/scripts/makefile.linux-opt
index f7ef4bc..76f6d1a 100644
--- a/scripts/makefile.linux-opt
+++ b/scripts/makefile.linux-opt
@@ -232,7 +232,7 @@
 	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.mips b/scripts/makefile.mips
index 5633608..0357ae8 100644
--- a/scripts/makefile.mips
+++ b/scripts/makefile.mips
@@ -78,7 +78,7 @@
 clean:
 	rm -f *.o libpng.a pngtest pngout.png pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.openbsd b/scripts/makefile.openbsd
index c4cfb2b..4057b2e 100644
--- a/scripts/makefile.openbsd
+++ b/scripts/makefile.openbsd
@@ -28,7 +28,7 @@
 CLEANFILES+= pngtest.o pngtest pnglibconf.h
 
 MAN=	libpng.3 libpngpf.3 png.5
-DOCS=	ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO \
+DOCS=	ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO \
 	libpng-manual.txt
 
 # Pre-built configuration
diff --git a/scripts/makefile.sco b/scripts/makefile.sco
index 67d84aa..01d7eaa 100644
--- a/scripts/makefile.sco
+++ b/scripts/makefile.sco
@@ -201,7 +201,7 @@
 	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
 	pnglibconf.h libpng.pc
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.sggcc b/scripts/makefile.sggcc
index a0d051d..82efe7a 100644
--- a/scripts/makefile.sggcc
+++ b/scripts/makefile.sggcc
@@ -211,7 +211,7 @@
 	$(RM_F) libpng.a pngtest pngtesti pngout.png libpng.pc \
 	so_locations libpng-config $(LIBSO) $(LIBSOMAJ)* pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.sgi b/scripts/makefile.sgi
index 7df0902..5d9c23f 100644
--- a/scripts/makefile.sgi
+++ b/scripts/makefile.sgi
@@ -212,7 +212,7 @@
 	$(LIBSO) $(LIBSOMAJ)* \
 	so_locations pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.so9 b/scripts/makefile.so9
index ba9308c..93166f3 100644
--- a/scripts/makefile.so9
+++ b/scripts/makefile.so9
@@ -222,7 +222,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.solaris b/scripts/makefile.solaris
index 8a450d3..6f4ba64 100644
--- a/scripts/makefile.solaris
+++ b/scripts/makefile.solaris
@@ -219,7 +219,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.solaris-x86 b/scripts/makefile.solaris-x86
index 2ee3c14..4c07b06 100644
--- a/scripts/makefile.solaris-x86
+++ b/scripts/makefile.solaris-x86
@@ -218,7 +218,7 @@
 	libpng-config $(LIBSO) $(LIBSOMAJ)* \
 	libpng.pc pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.std b/scripts/makefile.std
index ee6a868..30ab467 100644
--- a/scripts/makefile.std
+++ b/scripts/makefile.std
@@ -109,7 +109,7 @@
 	$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h pnglibconf.c \
 	pnglibconf.out
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*
 
diff --git a/scripts/makefile.sunos b/scripts/makefile.sunos
index efe308c..9a0e28e 100644
--- a/scripts/makefile.sunos
+++ b/scripts/makefile.sunos
@@ -90,7 +90,7 @@
 clean:
 	$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h
 
-DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
+DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
 writelock:
 	chmod a-w *.[ch35] $(DOCS) scripts/*