Matching patterns with variables -- Abelian properties of words -- On sets of words of rank two -- On families of limit S-adic words -- Independent systems of word equations: from Ehrenfeucht to eighteen -- Parikh determinants -- Critical exponent of infinite balanced words via the Pell number system -- Repetitions in infinite palindrome-rich words -- Generalized Lyndon factorizations of infinite words -- On the commutative equivalence of bounded semi-linear codes -- Circularly squarefree words and unbordered conjugates: a new approach -- The undirected repetition threshold -- Characteristic parameters and special trapezoidal words -- Return words and bifix codes in eventually dendric sets -- Enumeration and extensions of word-representable graphs -- Localisation-resistant random words with small alphabets -- On codeword lengths guaranteeing synchronization -- Binary intersection revisited -- On substitutions closed under derivation: examples -- Templates for the k-binomial complexity of the Tribonacci word -- Derived sequences of Arnoux-Rauzy sequences -- New results on pseudosquare avoidance -- Every nonnegative real number is a critical abelian exponent -- Rich words containing two given factors -- Mortality and synchronization of unambiguous finite automata -- On discrete idempotent paths.