Bump soname

src/Makefile.am

@@ -1,7 +1,13 @@
 lib_LTLIBRARIES = libstorj.la
 libstorj_la_SOURCES = storj.c utils.c utils.h http.c http.h uploader.c uploader.h downloader.c downloader.h bip39.c bip39.h bip39_english.h crypto.c crypto.h rs.c rs.h
 libstorj_la_LIBADD = -lcurl -lnettle -ljson-c -luv -lm
-libstorj_la_LDFLAGS = -Wall
+# The rules of thumb, when dealing with these values are:
+# - Always increase the revision value.
+# - Increase the current value whenever an interface has been added, removed or changed.
+# - Increase the age value only if the changes made to the ABI are backward compatible.
+# https://autotools.io/libtool/version.html
+# The order for version-info is <current>:<revision>:<age>
+libstorj_la_LDFLAGS = -Wall -version-info 1:1:0
 if BUILD_STORJ_DLL
 libstorj_la_LDFLAGS += -no-undefined
 endif